free fall マイ単語帳に追加

自由落下

the ideal falling motion of something subject only to a gravitational field.

重力場だけに従う物体の理想的な落下運動。

減少 低下 下落

a sudden sharp decrease in some quantity.

ある量の突然の急激な減少。

• when that became known the price of their stock went into free fall
• それが明らかとなったとき、彼らの株の価格は大暴落し始めた