vt.包封；遮蓋；包圍
The papers are enveloped by plastic bag. 論文用塑料紙包封好了。
Gloom enveloped the household. 沮喪的氣氛籠罩著這一家子。
The mountain peak was enveloped in mist and clouds. 山峰被云霧遮蔽。
n.信封；殼層；封袋
adj.被包圍的
動詞envelop的過去式和過去分詞形式.
包絡(luò)線
n.封套
名詞envelop的復數(shù)形式.
