buoyancy

名词 buoyancy:

1. cheerfulness that bubbles to the surface
   同义词：perkiness
2. the property of something weightless and insubstantial
   同义词：airiness
3. the tendency to float in water or other liquid
4. irrepressible liveliness and good spirit
   同义词：irrepressibility

buoy.an.cy

n.（名词）

The tendency or capacity to remain afloat in a liquid or rise in air or gas.
浮性：在液体中保持漂浮状态或在空气或气体中保持悬浮状态的趋势或能力
The upward force that a fluid exerts on an object less dense than itself.
浮力：流体施加给比自己密度小的物体的向上作用的力
Ability to recover quickly from setbacks; resilience.
弹性：从受阻状态下很快恢复的能力；弹性
Lightness of spirit; cheerfulness.
轻快，快乐；高兴