1·Please stick this stamp to the envelope before you mail the letter.
在你寄出这封信之前，请把这张邮票贴在信封上。
2·Stick a stamp on the envelop.
把一张邮票贴在信封上。
3·Stick the stamp on the envelope.
把邮票贴在信封上。
4·I forgot to stick a stamp on the letter.
我忘了在信上粘贴邮票。
5·Remember to stick a stamp onto the envelope before you post it.
寄信之前要记住在信封上贴邮票。
6·The stamp won't stick.
这张邮票贴不住。
7·Please stick this stamp to the envelope before you mail the letter .
在你寄出这封信之前， 请把这张邮票贴在信封上。
8·Stick a stamp on the envelope before you post the letter.
寄信 前要在信封上贴上邮票。
9·Don't forget to stick a stamp on an envelope before you put it into the mail-box.
把信投进信箱前别忘了在信封上贴上邮票。
10·The stamp won't stick.
这邮票粘不上。