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話題， わだい
1. topic, subject
2. much talked about, topical, in the news, hot
主题；备受热议的、时下热门的、新闻焦点、热门话题
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うつる， 移る， 遷る
1. to move (house), to transfer (department)
2. to change the target of interest or concern
3. to elapse (passage of time)
4. to be permeated by a colour or scent
5. to be infected, to be contagious, to spread (as in fire)
转移；改变(目标)
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ことにする， 事にする
1. to decide to
2. to pretend that
3. to make a practice of doing, to make it a rule to
决定；假装；养成习惯，将其作为规则
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