buoyancyKK [ˋbɔɪənsi] /ˈbɔɪənsi/名詞1浮力The buoyancy of salt water makes swimming much easier.鹽水的浮力讓游泳輕鬆許多。2浮性、漂浮力Air trapped in the hull gives the boat extra buoyancy.船身裡封住的空氣讓船有額外的浮性。3開朗、愉快、輕快Nothing could destroy the buoyancy of her mood that morning.那天早上沒有任何事能破壞她愉快的心情。4活絡、暢旺、上揚經濟Analysts were surprised by the buoyancy of the housing market.分析師對房市的暢旺感到意外。