Heeltap
n. 鞋跟上另加的皮, 残酒
🗣️ 情景例句
I understand.
我了解。
Whom will you invite to the party?
你将邀请谁参加聚会？
do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a moot point at present).
也都会消耗完其能量（整个宇宙是否如此，目前尚有争论）。