Variopter
(滑动)光学计算尺
🗣️ 情景例句
I want to pick up the car tomorrow morning at seven. Are you open then?
我想在明天早上7点提车。那时你们开门了吗？
Don't just shake you head.
别光摇头，想想办法！
Fine, thank you. And you?
我很好，谢谢。你怎么样？