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結構， けっこう
1. splendid, nice, wonderful, delightful, lovely, excellent, fine
2. sufficient, satisfactory, enough, fine, all right, OK
3. not needing (any more of something), (already) having enough, fine (as in "I'm fine"), no, thank you
4. rather, quite, fairl...
足够、满意、够了、好(的)、没事、OK；不需要(任何东西)了、(已经)够了；很好(如 "我很好")；不，谢谢；相当；精彩的，美好的，奇妙的，愉快的，可爱的，出色的，精妙的；结构
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のです， んです
1. the expectation is that ..., the reason is that ..., the fact is that ..., the explanation is that ..., it is that ...
tbd
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
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
