回答

・legs lose strength
・be paralyzed

「嚇到腿軟」在英文中可以用 legs lose strength 或 be paralyzed 等來表達。

I'm not good at dark places in the first place, so I think my legs will lose strength if I'm frightened by a haunted house.
（我本來就不擅長待在黑暗的地方，所以如果我被鬼屋嚇到，我認為我會嚇到腿軟）

I was paralyzed when he suddenly appeared in front of me, whom I thought had died.
（我以為他死了，但當他突然出現在我面前時，我嚇到腿軟了。）

有幫助｜0