Unconvertible
a. 不能变换的, 不能兑换的
🗣️ 情景例句
Call the plumber to fix the toilet.
给水管工打个电话来修理厕所。
He is also very fond of playing tennis and manages to find time for a game twice a week.
他非常喜欢打网球，每周总要抽时间打两次。
Some of them are very cheap.
其中有些商品挺便宜的。