Electiveness
选修制
🗣️ 情景例句
But if we go out,
但是我们出去后，
The negotiations on the rights and obligations of the parties under contract turned out to be very successful.
就合同保方的权利和义务方面的谈判非常成功。
Then, when it's open, we fight about who plays with it first.
然后，当礼物打开后，我们又争着谁先来玩。