envelope
[xìnfēng]
〈名〉
envelope
打开/裁开/撕开信封
open/slit open/tear open an envelope
封信封
seal (up) an envelope
回邮信封
self addressed envelope; stamped addressed envelope; return envelope
胶口信封
self-adhesive envelope
自带邮票的信封
self-stamped envelope
在信封上贴邮票
stick a stamp on an envelope
在信封上写姓名地址
address an envelope