您要查找的是不是：
- A simple test will show if this is real gold. 简单的试验就能证明这是否是真金。
- 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。
- 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。
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- 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。
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- 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。
- It will be wise to go over your test paper again. 还是把您的考卷再检查一遍的好。
- The (flap of the) envelope was unstuck. 信封(的封口)没粘住。
- Let us show you to see the engine to test. 让我们指给你看要测试的发动机。
- There are several enclosures in the envelope. 信封内装有几份附件。
- He is answering the test paper busily. 他正忙着答考试卷。
- Don't tumble down on this easy test. 这次考试不难，你可别考砸了。
- An envelope or wrapper for mail. 封套，信封为邮寄而制的信封或封套
- Tomorrow we'll have a history test. 明天我们将进行历史测验。
