小测验：选择正确的单词

1. pay envelope
   工资袋,工资
   
2. window envelope
   n.(有透明纸窗可见收信人地址的)开窗信封
   
3. floral envelope
   花被
   

1. He recognized his mother's handwriting on the envelope.
   他认出信封上他母亲的手记。
2. I'd like some stamps and envelopes, please.
   我想买邮票和信封。
3. The flap of the envelope has come unstuck.
   信封口的黏胶黏不住了。
4. Stick the stamp on the envelope.
   把邮票贴在信封上。
5. This envelope has come unstuck.
   这个信封开了.

　6个名词解释