Packaged vacuum unit
[化] 小型真空设备
🧩 词语组成解析
packaged
[['pækidʒd]]
a. 包装过的
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
Don't waste your breath trying to persuade them, they'll never listen.
别白费口舌规劝他们，他们不会听你的话。
We are having a party and would like you to come.
我们要开派对，能请您光临吗？
Are you free later today, Mr. Green?
您今天晚些时候有空吗，格林先生？