Bialternant
[数]双交替式
🗣️ 情景例句
It's about the size of the United States, but it has a population of only 16.5 million.
它和美国一般大，但人口却只有一千六百五十万。
Let me see your passport, please.
请让我看看你的护照。
It's quite likely that a decision will be made before the end of the year.
有可能年底前就要作出决定。