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夜更かし， 夜更し， 夜ふかし， よふかし

1. staying up late, keeping late hours, sitting up late at night, nighthawk

tbd

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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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いけない

1. bad, wrong, naughty 2. must not (do, be), should not, ought not to 3. useless, no good, bad 4. hopeless, beyond hope 5. unfortunate, a shame, a pity 6. unable to drink (alcohol) 7. so as not to ..., so that ... (won't), in case ..., for fear that ...

以免……，以免……，以防万一……，担心……，唯恐……

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する， 為る

1. to do, to carry out, to perform 2. to cause to become, to make (into), to turn (into) 3. to serve as, to act as, to work as 4. to wear (clothes, a facial expression, etc.) 5. to judge as being, to view as being, to think of as, to treat as, to use...

做，作，干，执行

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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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