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哺乳類， ほにゅうるい

1. mammal, mammalian

tbd

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分類， ぶんるい

1. classification, categorization, sorting

分类

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される， 為れる

1. to be done (to someone or something) 2. to do, to be doing

(对某人或某物)进行某种动作，する的被动形态；(对某人或某物)正在做，即将做

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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

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に

1. at (place, time), in, on, during 2. to (direction, state), toward, into 3. for (purpose) 4. because of (reason), for, with 5. by, from 6. as (i.e. in the role of) 7. per, in, for, a (e.g. "once a month") 8. and, in addition to 9. if, although

tbd

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