Tradeable
可交换的
🗣️ 情景例句
When you have nothing to do, time goes slowly.
你没事做时，时间便过得很慢。
If I have enough money,I'm going to take a trip abroad.
如果我有足够的钱，我将在国外旅行。
In a heat wave we choose a midnight birthday party and that is the most exciting of all.
天气炎热时，我们便选择在半夜举办生日聚会，这种聚会是最令人激动的。