您要查找的是不是：
- sealed silica envelope 密封石英管
- The envelope's seal was torn open. 信封封缄被撕开了。
- The information is sent in a sealed envelope. 信息用封口的信封寄出。
- She licked the envelope and sealed it. 她舔了一下信封便把它封住了。
- I lick the flap of the envelope and sealed it. 我舔了舔信封盖口,把它封好。
- He sealed the envelope and put a stamp on it. 他封上信封,然后贴上邮票。
- Police sealed off all the exits from the building. 警方把建筑物的所有出口都封锁住了。
- Have you stuck down the back of the envelope? 信封背面开口处贴牢了吗？
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉，以便保存肉汁。
- He steamed the stamp off the envelope. 他用蒸汽把信封上的邮票揭下来。
- I licked the flap of the envelope and sealed it. 我舔了舔信封盖口,把它封好。
- The putty gives a good seal round the window. 窗户四周泥的油灰密封效果很好。
- He glued a stamp onto the envelope. 他把邮票贴在信封上。
- The computer disk is sent in a sealed container. 计算机软盘装在密封的盒里寄出。
- As he picked up the envelope, a key dropped out. 他拣起信封时，一把钥匙掉了出来。
- As she picked up the envelope, a key dropped out. 她拾起信封时，一把钥匙掉了出来。
- Our foil packets seal the flavour in. 我们用锡纸包装以保持原味。
- Put a stamp on the envelope, will you? 在信封上贴张邮票，好吗？
- He stuck a stamp on the envelope. 他在信封上贴上邮票。
- This document carries the royal seal. 这份文件上盖有王室印章。
