envelope
[xìnfēng]
〈名〉
envelope
打开/裁开/撕开信封
open/slitopen/tearopenanenvelope
封信封
seal(up)anenvelope
回邮信封
selfaddressedenvelope;stampedaddressedenvelope;returnenvelope
胶口信封
self-adhesiveenvelope
自带邮票的信封
self-stampedenvelope
在信封上贴邮票
stickastamponanenvelope
在信封上写姓名地址
addressanenvelope