Fractograph
断口组织(金属断面)的显微镜照片
🗣️ 情景例句
We have a mideweek special. It's 12 dollars a day, 12 cents a mile, plus gas.
我们从星期二到星期四都有特价。一天12元，每英里加12分，含汽油在内。
What are you drawing?
你正在画什么？
How soon can you have your product ready?
你们多久才可以把产品准备好呢？