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予約， よやく

1. reservation, appointment, booking, advance order 2. contract, subscription, pledge 3. programming (e.g. a device), setting (e.g. a timer)

预约，预订；订阅

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を

1. indicates direct object of action 2. indicates subject of causative expression 3. indicates an area traversed 4. indicates time (period) over which action takes place 5. indicates point of departure or separation of action 6. indicates object of d...

表示动作的直接对象；表示经过的场所；表示离开或分开的点

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変更， へんこう

1. change, modification, alteration, revision, amendment

变更

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のです， んです

1. the expectation is that ..., the reason is that ..., the fact is that ..., the explanation is that ..., it is that ...

tbd

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