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沈む, しずむ
1. to sink, to go under, to submerge
2. to go down (e.g. sun), to set, to descend
3. to feel depressed, to become subdued, to become somber
下沉,沉没,淹没;感到沮丧,变得低落,变得阴郁
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浮上, ふじょう
1. surfacing, rising to the surface
2. emerging, leaping into prominence
3. rising (of rank)
浮出,浮现;上升