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一体， いったい

1. (what) the heck, (why) in the world, (who) on earth 2. one object, one body, unity 3. one form, one style 4. one Buddhist image (or carving, etc.) 5. generally, in general

一体；到底(怎么回事)；通常，一般来说

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何者， 何もの， なにもの

1. who, what kind of person

什么人

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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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だ

1. be, is

断定助动词，是，是也

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