envelope
[英][ˈenvələup][美][ˈɛnvəˌlop, ˈɑn-]
n.
信封，封皮；壳层，外壳；包裹物；[生物学]膜，包袋
复数: envelopes
双语例句
1.
the flap of an envelope
信封的封盖
2.
Make sure you've signed the cheque before sealing theenvelope.
一定要在支票上签了名再封信封。
3.
Please enclose a stamped addressed envelope to get your test results.
请附姓名地址邮资俱全的信封，以便把化验结果寄给你。
4.
Although I moistened it,the flap doesn't stick to the envelope.
我把信封弄湿了，可是信封口盖还是粘不上。
5.
I folded the letter and then put it into the envelope.
我把信折好后放进信封里。
