Evacuation pump
[化] 排气泵
🧩 词语组成解析
evacuation
[iˌvækju'eiʃən]
n. 撤空;撤离;撤退;疏散;
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
and he doesn't get to use it.
却又用不上。
How much do I owe you?
我欠你多少钱？
When, for example, a customer first opens an account,
比如，储户首次在银行开户时，