Remontoir
发条；上弦机构
🗣️ 情景例句
Yes, I know that.
是的 ，我知道。
My brother took lessons on the trumpet for nearly ten years.
我的兄弟有将近10年的时间听小号的课了。
Would you let me know your fax number?
可以告诉我您的传真机号码吗？