Unicoupler
单耦合器
🗣️ 情景例句
Don't ask why; just do as you are told.
别问为什么， 按要求去做就行了。
A standard one. Replacement during the first year if all rules for proper use have been followed.
有一个原则，如果在一年内符合各种使用规定，就可更换。
When will the train leave?
火车什么时候开？