立彬の日本語

彼の議論は合理的だ。

tbd

His argument is rational.
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議論， ぎろん
1. argument, discussion, dispute, controversy
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合理的， ごうりてき
1. rational, reasonable, logical
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彼(かれ)[01]{彼の}
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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だ
だ
1. be, is
断定助动词，是，是也
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