Vacuum test
[化] 真空检验
🧩 词语组成解析
🗣️ 情景例句
The internet brings people closer from around the world.
因特网把世界上人们的距离拉近了。
No, not really. It doesn't make any difference.
没有，真的没有，没有不同看法。
My grammar is improving, but I find idioms and useful expressions hard to learn.
我的语法在进步，但我发现习语和有用表达很难学。