立彬の日本語

眠いときに勉強しても無駄だ。

tbd

It is no use studying when you are sleepy.
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眠い, 睡い, ねむい
1. sleepy, drowsy, somnolent
昏昏欲睡的,困倦的,嗜睡的
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勉強, べんきょう
1. study 2. diligence, working hard 3. experience, lesson (for the future) 4. discount, price reduction
学习
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無駄, 徒, むだ, ムダ
1. futility, waste, uselessness, pointlessness, idleness
徒劳,浪费,无用,无意义
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時(とき){とき}
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
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1. too, also, in addition, as well, (not) either (in a negative sentence) 2. both A and B, A as well as B, neither A nor B (in a negative sentence) 3. even, as much as, as many as, as far as, as long as, no less than, no fewer than 4. even if, even t...
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1. be, is
断定助动词,是,是也
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