立彬の日本語

あいつは小食なんだ。

tbd

Oh, he eats like a bird.
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小食， 少食， しょうしょく
1. light eating, spare diet, not eating much
tbd
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なのだ， なんだ
1. it is assuredly that ..., can say with confidence that ... 2. did not ...
〜んだ句型；可以肯定地说……，可以有把握地说……
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彼奴(あいつ)[01]{あいつ}
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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