立彬の日本語

彼らは自分の最善を尽くすことが大切だ。

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It is important for them to do their best.
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自分， じぶん
1. myself, yourself, oneself, himself, herself 2. I, me 3. you
自己，自身；我自己；你自己；他自己；她自己；我；你
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最善を尽くす， 最善をつくす， さいぜんをつくす
1. to do one's best, to do something to the best of one's ability
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彼ら(かれら)
彼ら， 彼等， かれら
1. they, them
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は
は
1. indicates sentence topic 2. indicates contrast with another option (stated or unstated) 3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
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の
の
1. indicates possessive 2. nominalizes verbs and adjectives 3. substitutes for "ga" in subordinate phrases 4. (at sentence-end, falling tone) indicates a confident conclusion 5. (at sentence-end) indicates emotional emphasis 6. (at sentence-end, risi...
句尾起强调作用；助词，表示所有关系
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事(こと){こと}
こと， 事， 縡
1. thing, matter 2. incident, occurrence, event, something serious, trouble, crisis 3. circumstances, situation, state of affairs 4. work, business, affair 5. after an inflectable word, creates a noun phrase indicating something the speaker does not ...
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が
が
1. indicates the subject of a sentence 2. indicates possession 3. but, however, (and) yet, though, although, while 4. and 5. used after an introductory remark or explanation 6. regardless of ..., whether ... (or not), no matter ... 7. indicates a des...
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大切(たいせつ)
だ
だ
1. be, is
断定助动词，是，是也
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