Buoyancy
01
浮力, 軽さ
the property of something weightless and insubstantial
02
楽観, 自信
a feeling of hopefulness and confidence that makes one remain cheerful, especially in sad or unpleasant situations
03
浮力, アルキメデスの原理
the tendency of an object to float or rise in a fluid, like water or air, due to the upward force exerted by the fluid
例
Life jackets rely on buoyancy to keep people safe in water.
ライフジャケットは、水中で人々を安全に保つために浮力に頼っています。
04
陽気, 楽しさ
cheerfulness that bubbles to the surface
語彙ツリー
buoyancy
buoy
