buoyant
01
欢快的, 活泼的
cheerful and lively in spirit
例子
His buoyant attitude lifted everyone's spirits.
他欢快的态度提升了每个人的精神。
02
有浮力的, 轻的
capable of floating on a liquid or rising in air or gas
例子
Foam is naturally buoyant and is used in flotation devices.
泡沫自然具有浮力，用于漂浮装置。
词汇树
buoyantly
buoyant
buoy
