Electiveness
选修制
🗣️ 情景例句
You look very familiar. Have we been introduced before?
你看起来很面熟，我们以前互相介绍认识过吗？
After the flood, the carpets were wet for a month.
洪水过后一个月，毛毡还是湿的。
Antonio has promised to give you a pound of his flesh.
安东尼奥许诺给你他身上的一磅肉。