Rackwork
齿条, 齿条加工, 齿条机构
🗣️ 情景例句
When are you going camping again?
你什么时候再去露营？
Do I need a reservation for the dining car?
我需要预订餐车吗？
The purpose of my coming here is to inquire about possibilities of establishing trade relations with your company.
我此行的目的正是想探询与贵公司建立贸易关系的可能性。