Ethines
[化] 炔烃
🗣️ 情景例句
Studying is a big boring, but it sure beats the unemployment queues.
学习是有点枯燥，但比起失业来好多了。
We have a toll-free number for customers to call.
我们对顾客提供免费服务电话。
How can you say that?
你怎么可以这样说？