Spund
履带链板, 履带瓦
🗣️ 情景例句
Thank you, you are a real credit to the car repair industry.
感谢你，你真的为汽车维修业增了光。
I'd like two seats on today's northwest flight 7 to detroit, please.
我想订两张今天西北航空公司7班次到底特律的机票。
Many people in industry and the Services, who have practical experience of noise,regard any investigation of this question as a waste of time;
在工业部门工作和在军队中服役的许多人对噪音有切身的体会，他们认为对这个问题进行调查是浪费时间，