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世の中， よのなか
1. society, the world, the times
社会、世界、时代
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何か， なにか， なんか
1. something, some, any
2. somehow, for some reason
3. (so) what (are you trying to say)?, what (do you mean)?
什么，任何
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