Cmpm
计算机管理零件生产
🗣️ 情景例句
I'm a friend of Pete's.
我是Pete的朋友。
When I left, he was at home.
当我离开的时候，他回家了。
4 Think of a time when you were happiest. What were you doing?
4。想一想你感到最高兴的时刻。当时你在做什么？