Vacuum envelope
[电] 真空套
🧩 词语组成解析
envelope
['envələʊp]
n. 信封，封皮;壳层，外壳;包裹物;[生物学]膜，包袋;
en 表示\"进入…之中，包围\" +velop =cover（盖上） +e → .信封, 封套, 封袋, [天]包层, [数]包迹, [生]包膜
🗣️ 情景例句
And I'll be able to show you around our city.
我可以带你在我们那儿四处看看。
Against your enquiry, we are pleased to make you a special offer as follows and hope to receive your trial order in the near future.
根据你方要求，我方很高兴就如下商品向你方特殊报价，希望不久能收到你方的试订单。
' If you receive a request like this, you cannot fail to obey it!
”如果你收到这样的恳求，你是不会不遵照执行的！