Envelope plane
[计] 包络面
🧩 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
Don't mention it.
别提了。
Is it long way from here to the United Air Lines counter?
从这里到美国航空公司柜台有一段很远的路。
Even his way of walking down the street and turning a corner could be recognized as his own.
就连他在街上走路和他转过拐角的那姿式都可以看出是他自己独有的。