Undertread
n. 底胎面(指轮胎的加固层)
🗣️ 情景例句
on the school board,
在联合校董会中
If you sign this contract all of your financial worries will be over!
如果你在这份合约上签字，你就和金钱的劳累一刀两断了。
Please write soon and tell me all your news.
噢，我得停笔了。请快点回信，告诉我你们的一切。