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HSK 4 | verb | continuing a state or condition over time

HSK 5 | verb | to merge, to combine, to consolidate

HSK 5 | adjective | profound in meaning; deeply felt; incisive and penetrating

HSK 3 | noun | bread; a baked flour product

HSK 3 | adverb / verb | doing things separately or parting from each other

HSK 4 | noun / adjective | strategy; strategic

Learn how to use 〜に加えて (ni kuwaete) to express 'in addition to' when adding further information or elements. Includes structure, nuance, examples, and comparisons.

HSK 4 | verb | to learn successfully, to master a skill

HSK 1 | noun | Chinese language, Mandarin Chinese

HSK 1 | pronoun | second-person singular pronoun (informal)

HSK 2 | noun | father's mother (paternal grandmother)

HSK 1 | number | the digit three

HSK 3 | noun | the deeper significance or importance of something

西 (west): 6 strokes, JLPT N5. On: セイ、サイ. Kun: にし.

Discuss core Chinese social values including 面子, 关系, and 孝顺 using formal register vocabulary at B1 level.

We are asked to determine if a city with a grid of horizontal and vertical streets is "strongly connected" once each street is made one-way. The city can be visualized as a grid of intersections, with n horizontal streets and m vertical streets forming n × m junctions.

HSK 4 | adjective | of great consequence or value

HSK 5 | adjective/verb | prosperous, thriving; to prosper, to flourish

HSK 4 | noun | an observable fact or event, especially one requiring explanation

HSK 2 | conjunction | therefore, so, that is why (result connector)

HSK 3 | verb + directional complement | to run back to a place away from the speaker

毎 (every, each): 6 strokes, JLPT N5. On: マイ. Kun: none.

HSK 5 | noun/adjective | spirit, mind, essence; energetic, lively

HSK 4 | verb/noun | to arrange people or resources into a structured whole; a group with a shared purpose

HSK 5 | verb / adjective | to lag behind or be underdeveloped

HSK 4 | n | money collected by the government through taxes

Learn how to greet people, introduce yourself, and use Esperanto's present-tense verb ending and personal pronouns.

Esperanto vocabulary for arts, traditions, social structures, politics, and cultural life.

HSK 3 | verb | to successfully obtain, receive, or achieve something

HSK 5 | verb | to expound; to set forth in detail

HSK 3 | pronoun / adjective | refers to every member of a set without restriction

HSK 4 | verb | to oppose, to object to, to be against

HSK 4 | conjunction / adverb | introducing a mild contrast or limitation

HSK 1 | adverb/noun | the present moment

HSK 3 | noun | an indoor facility for sports and physical activities

HSK 4 | noun | the explanation for why something happened

HSK 3 | verb/noun | an expression of friendly acknowledgment or well-wishes

HSK 5 | noun | the rate at which one currency is exchanged for another

HSK 1 | adverb | indicates earliness, immediacy, or that something happens sooner than expected

HSK 4 | noun | a person employed by an organization

HSK 1 | particle | marks completed actions (post-verb) or new situations (sentence-final)

千 (sen/chi): thousand. JLPT N5 kanji.

HSK 6 | n | regular pattern or law governing natural or social phenomena

HSK 4 | noun/verb | money that is spent or paid out

HSK 5 | conjunction | even; ranging from ... to; and even

HSK 5 | n | literary prose; an essay or lyrical prose piece

Comprehensive N4 review: authentic dialogues using all N4 grammar, a reading passage with comprehension questions, a 20-point self-assessment checklist, 30 mixed-level practice questions, and a preview of what awaits at N3.

HSK 4 | noun | a geographical or administrative area

HSK 6 | verb | to express or articulate ideas clearly and systematically

HSK 5 | adjective/adverb | clearly defined and detailed, not abstract or vague

HSK 3 | adjective / adverb | possible; maybe, possibly — covers both uses

HSK 3 | noun / verb | a plan or program; to plan something in advance

Learn school vocabulary, how to say where an activity takes place using 在 + place + verb, and common 学习 collocations.

HSK 3 | verb | to change, exchange, replace, or swap one thing for another

HSK 1 | adjective | tall, high, of great height

HSK 3 | adjective / adverb | special, particular; especially, particularly

電 (den/): electricity. JLPT N5 kanji.

Achieving 母语水平 in Chinese production: natural fluency, idiomatic authenticity, and the final gap between expert non-native and native output.

HSK 1 | pronoun | first-person singular pronoun

HSK 3 | adverb | restrictive adverb expressing lateness, difficulty, or limited scope

HSK 5 | noun/verb | public relations; to conduct PR activities

HSK 5 | verb | to portray with precision; to carve out a character or image

Learn 〜をめぐって and 〜をめぐる to discuss debates, controversies, and disputes surrounding a topic in formal Japanese.

Sindarin vocabulary for the human body, health, injury, and healing: attested and Neo-Sindarin terms with all known plural forms and example sentences.

Engage with Chinese environmental policy discourse, mastering the vocabulary of climate, sustainability, and environmental governance.

HSK 3 | verb | to board or travel by a vehicle

HSK 3 | preposition | marks the object of a disposal action, placed before the verb

HSK 4 | adjective | right for a particular purpose or situation

Learn how to use 〜に際して (ni saishite) to express 'on the occasion of' or 'at the time of' for significant events and actions. Includes structure, nuance, examples, and comparisons.

HSK 5 | adjective | negative in attitude; passive; pessimistic

HSK 5 | adjective | renewable (resources, energy)

HSK 4 | verb/noun | a formal public statement or announcement

HSK 5 | noun | a formal agreement reached between parties, or a technical protocol

Sindarin comparison: an- prefix for superlative (most), -wain suffix for superlative, einior (elder), iarwain (oldest), and Neo-Sindarin comparative constructions.

HSK 4 | noun | the sensation perceived by the tongue when eating or drinking

Master the Japanese demonstrative system (Ko-So-A-Do) to accurately identify objects, locations, and directions in daily conversation.

HSK 1 | adjective | short (in height), not tall

HSK 4 | verb/noun | to train, to provide training; training

HSK 4 | verb | to know (a fact or piece of information)

HSK 3 | verb | to know well through inquiry or experience; deeper than 知道

HSK 3 | noun | method, way, approach — a systematic means of doing something

HSK 5 | noun/verb | goods or the act of bringing goods into a country

JLPT N4 kanji 医 — readings, vocabulary, stroke order, mnemonic, and common confusion pairs.

HSK 4 | adjective | not in accordance with reason or logic

HSK 4 | noun | an individual belonging to a group or organization

HSK 5 | verb/noun | to experience firsthand; personal experience; user experience

HSK 3 | adverb | indicates that something is unnecessary or not required

HSK 5 | noun | the variety of life forms in a given environment

HSK 4 | adjective | rough, not detailed, approximate

Learn 〜わけではない to express partial negation — it doesn't mean that X, clearing up misunderstandings while allowing for nuance.

N1 grammar pattern 〜にもかかわらず: expressing contrast or concession — despite, in spite of, even though.

HSK 3 | conjunction | introduces the single condition that is the only exception to a rule or the only way an outcome can occur

〜てくれる: JLPT N4 grammar pattern. Usage, structure, examples, and comparison with similar patterns.

HSK 5 | noun | financial award given to support a student's education

Learn to share, support, and disagree with opinions using 觉得, 认为, and related expressions.

Express purpose, intention, and preventive actions using 为了, 以便, 以免, and related patterns at B1 level.

HSK 3 | adjective / noun | dangerous, risky; danger, risk

HSK 5 | noun phrase | the warming of Earth's atmosphere due to trapped heat

HSK 4 | verb | to collect, to gather

We are given a list of integers and a set of queries. Each query asks how many contiguous subarrays of the list have a greatest common divisor equal to the query value.