Electiveness
选修制
🗣️ 情景例句
I hate this.
我讨厌这个
I have a feeling he will get to the airpot on time.
我有一种感觉他会准时到机场。
He told him he had better return it or he would call the police.
告诉他最好把羊交还，否则就去叫警察。