Contrail
n. 凝(结尾)迹
🗣️ 情景例句
What's the problem?
什么问题啦？
I only need a thousand more pennies to buy my airplane.
我只要在有一千个一角的铜板，就能买一架飞机了。
The fax has greatly changed office work, especially in China.
特别是在中国，传真机大大地改变了办公室的工作。