立彬の日本語
蝙蝠は鳥ではなく哺乳類だ。
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Bats are not birds, they're mammals.
A bat is not a bird, but a mammal.
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こうもり， かわほり， へんぷく， コウモリ， 蝙蝠
1. bat (Chiroptera spp.)
2. umbrella
3. opportunist, turncoat
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鳥， 鶏， 禽， とり， トリ
1. bird
2. bird meat (esp. chicken meat), fowl, poultry
鸟；鸡肉
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哺乳類， ほにゅうるい
1. mammal, mammalian
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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