Evacuation of vacuum tube
[电] 真空管的抽空法
🧩 词语组成解析
evacuation
[iˌvækju'eiʃən]
n. 撤空;撤离;撤退;疏散;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
My doctor says I could live to be 100.
我的医生说我能活到100岁。
Could you tell me where I can find these books?
您能告诉我在哪儿能找到这些书吗？
Then the woman simply took the parcel and walked out of the shop without paying.
然后，那妇女拿过包就走出了商场，根本没有付钱。