Diffusion (vacuum)pump
[化] 扩散泵; 扩散真空泵
🧩 词语组成解析
🗣️ 情景例句
We just don't see each other anymore.
我们彼此差不多见不到面了。
I can't be sure of my future plans.
我还没有明白地定下我将来的计划。
He waited until someone new joined the company and then began to steal.
他等待有人刚加入公司后才开始偷窃。