您要查找的是不是：
- Have you stuck down the back of the envelope? 信封背面开口处贴牢了吗？
- He steamed the stamp off the envelope. 他用蒸汽把信封上的邮票揭下来。
- He glued a stamp onto the envelope. 他把邮票贴在信封上。
- You can gain by watching how she works. 看她怎样工作就可获益。
- As he picked up the envelope, a key dropped out. 他拣起信封时，一把钥匙掉了出来。
- Oil share show modest gain over the week's trading. 石油股票价在上星期的交易中略有上升。
- As she picked up the envelope, a key dropped out. 她拾起信封时，一把钥匙掉了出来。
- Put a stamp on the envelope, will you? 在信封上贴张邮票，好吗？
- The masses gain experience through struggle. 群众通过斗争可以取得经验。
- He stuck a stamp on the envelope. 他在信封上贴上邮票。
- It is not for the love of gain that he does so. 他这样做并非为了得什么好处。
- She opened the envelope with her fingertips. 她用指尖弄开了信封。
- The envelope's seal was torn open. 信封封缄被撕开了。
- The (flap of the) envelope was unstuck. 信封(的封口)没粘住。
- We hope for some gain from our investment. 我们希望投资有利可图。
- There are several enclosures in the envelope. 信封内装有几份附件。
- No practice, no gain in one's wit. 纸上得来终觉浅，要知此事须躬行。
- Gain got by a lie will burn one's fingers. 靠欺骗得利，准要吃亏。
- An envelope or wrapper for mail. 封套，信封为邮寄而制的信封或封套
- Fame and gain are but chips to him. 他视名利为尘土。
