Electiveness
选修制
🗣️ 情景例句
I'd like to ask for your daughter's hand in marriage.
我希望你能把女儿许配给我。
I'd like to explain what makes this factory special.
我要向你说明本工厂的特性。
Yes. It sounded like a train that was going under my house.
是的。这响声听起来像是一列火车在从我的房子下面驶过。