Vacuum test(ing)
[化] 真空试验
🧩 词语组成解析
🗣️ 情景例句
You'll have to ask a whole lot nicer than that I'm afraid.
恐怕你应该要问得有礼貌一点吧。
Excuse me I can't do it now.
对不起我不能现在做。
I don't think so, he says.
“我想不可以。”他说。