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推測， すいそく

1. guess, conjecture

tbd

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間違う， まちがう

1. to make a mistake, to be incorrect, to be mistaken

犯错，有误，出错

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なければ， 無ければ

1. if (it) doesn't exist, if there is no ..., if (one) doesn't have ... 2. if not ..., unless ... 3. have to ..., must ...

tbd

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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...

tbd

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彼， かれ

1. he, him 2. boyfriend

他

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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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だ

1. be, is

断定助动词，是，是也

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