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口をきく， 口を利く， 口を聞く， くちをきく
1. to speak, to talk
2. to mediate, to act as a go-between, to put in a good word (for someone)
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くれる， 呉れる
1. to give, to let (one) have
2. to give
3. to do for one, to take the trouble to do
4. to do to someone's disadvantage
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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