Prepaying
v. 预付, 先付( prepay的现在分词 ); 预付（邮资等）
🗣️ 情景例句
Are they open?
店开着吗？
Though thy enemy seem a mouse,yet watch him like a lion.
敌人即使小如鼠，防他也要如防狮。
He had been obliged to join the army during the Second World War.
年龄比他两个弟弟大很多，第二次世界大战期间被迫参军。