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何事， 何ごと， なにごと
1. what, what sort of thing
2. everything, anything
3. what (on earth)?, what's the meaning of this ...?, what's this ... all about?
tbd
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にも
1. also, too, not ... either, as well, even
2. (it's not possible) no matter what, although one might wish otherwise
也
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喜ぶ， 悦ぶ， 歓ぶ， 慶ぶ， 欣ぶ， よろこぶ
1. to be delighted, to be glad, to be pleased, to rejoice
2. to congratulate
3. to welcome (a proposal, advice, etc.), to take kindly to
4. to do with pleasure, to do gladly, to be happy (to do)
喜悦、高兴、欣喜、欢喜；致贺；欢迎(建议、意见等)，欣然接受；高兴地做