envelope
美[ˈenvəloʊp] 网络信封；外壳；信封上；包络线
1 . Return the enclosed Donation Form today in the prepaid envelope provided.
请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。
来自柯林斯例句
2 . Under the newspaper, atop a sheet of paper, lay an envelope .
在报纸下面的一张纸上放着一个信封。
来自柯林斯例句
3 . The envelope has been tampered with and then taped shut again.
信封被人动过手脚，然后又用胶带封上了。
来自柯林斯例句
4 . Liz picked up the blue envelope and turned it over curiously.
莉兹拿起蓝色信封，好奇地翻过来看。
来自柯林斯例句
5 . He took a largish buff envelope from his pocket.
他从口袋里掏出一个相当大的米色信封。
来自柯林斯例句
1.a flat rectangular paper container for papers
2.any wrapper or covering
3.a curve that is tangent to each of a family of curves
4.a natural covering (as by a fluid);
the spacecraft detected an envelope of gas around the comet
5.the maximum operating capability of a system;
test pilots try to push the envelope
6.the bag containing the gas in a balloon