buoyancy

US /ˈbɔɪ.ən.si/
UK /ˈbɔɪ.ən.si/
"buoyancy" picture
1.

浮力, 浮性

the ability or tendency of something to float in water or other liquid or in the air

:
The boat's excellent buoyancy kept it afloat even in rough seas.
船隻出色的浮力使其即使在波濤洶湧的海面上也能保持漂浮。
Helium balloons demonstrate the principle of buoyancy.
氦氣球展示了浮力的原理。
2.

樂觀, 開朗, 活潑

an optimistic and cheerful disposition

:
Despite the setbacks, her natural buoyancy helped her stay positive.
儘管遭遇挫折,她天生的樂觀幫助她保持積極。
His buoyancy in the face of adversity was truly inspiring.
他在逆境中的樂觀精神確實令人鼓舞。