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先週， せんしゅう

1. last week, the week before

tbd

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約束， やくそく

1. promise, agreement, arrangement, one's word, contract, pact 2. appointment, engagement, date 3. convention, rule 4. destiny, fate

协议，合同，约定；约会，订婚；惯例，规则；命运，宿命

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まだ， いまだ， 未だ

1. still, as yet, only 2. (not) yet 3. more, (more) still 4. at least, comparatively, relatively 5. unfinished, incomplete, not yet done

至今，迄今为止，仅有；还(没有)、尚未；更多，（更多）依然；至少，相对而言，相比之下；未完成的，不完整的，尚未完成的

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有効， ゆうこう

1. valid, effective 2. yuko (judo)

有效

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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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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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です

1. be, is

断定助动词，是，是也

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