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差額， さがく

1. balance, difference (in price, cost), margin

差额，差价（价格、成本）

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ある， 有る， 在る

1. to be, to exist, to live 2. to have 3. to be located 4. to be equipped with 5. to happen, to come about

有，存在；有，拥有；发生；位于；配备

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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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が

1. indicates the subject of a sentence 2. indicates possession 3. but, however, (and) yet, though, although, while 4. and 5. used after an introductory remark or explanation 6. regardless of ..., whether ... (or not), no matter ... 7. indicates a des...

tbd

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