Alternant
a. 交互的, 交替的\\nn. 交替函数
✅ 同义词
🗣️ 情景例句
Yes. They reached us yesterday.
是的，昨天我们收到这批货物。
If the sky fll (or falls), we shall catch larks.
异想天开
Oh, there's the conductor. Do you have your ticket?
啊，列车员来了。票在你那儿吗？