buoyant
/ˈbɔɪənt/adjective
1- able or tending to keep afloat or rise to the top of a liquid or gas能浮起的。
1.1
- (of a liquid or gas) able to keep something afloat（液体或气体）有浮力的。
1.2
- figurative (of an economy, business, or market) involving or engaged in much activity〈喻〉（经济、生意或市场）有活力的; 繁荣的：
car sales were buoyant.
汽车销售如火如荼。
1.3
- figurative cheerful and optimistic〈喻〉轻松愉快的; 乐观的：
the conference ended with the party in a buoyant mood.
会议结束时该党气氛欢快。
派生词
buoyantly
adverb词源
late 16th cent.: from French bouyant or Spanish boyante, present participle of boyar 'to float' （see BUOY）.