noun🔗Share浮力，漂浮力。 The upward force on a body immersed or partly immersed in a fluid."The beach ball's buoyancy kept it floating easily on the water. "沙滩球的浮力使它能轻松地漂浮在水面上。physicsnauticalChat with AIVocabulary GamePractice Reading
noun🔗Share浮力，漂浮性 The ability of an object to stay afloat in a fluid."The beach ball's buoyancy kept it bobbing on the surface of the water. "这个沙滩球的浮力让它在水面上漂浮着。physicsnauticalscienceabilityChat with AIVocabulary GamePractice Reading
noun🔗Share乐观， 向上。 (by extension) Resilience or cheerfulness."Despite the rainy day and her canceled plans, her natural buoyancy kept her smiling. "虽然下着雨，计划也被取消了，但她天生的乐观向上让她依然笑容满面。characterattitudemindChat with AIVocabulary GamePractice Reading
