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。
- The aircraft was flying above thick fog. 飞机在浓雾上空飞行。
- The speed of this aircraft is very high. 这架飞机的速度非常快。
- 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。
- He assembled the model aircraft bit by bit. 他一块一块地装配飞机模型。
- 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？
- Enemy aircraft dropped bombs on the city. 敌机向这个城市投掷炸弹。
- He stuck a stamp on the envelope. 他在信封上贴上邮票。
- The watchtower followed the aircraft by radar. 瞭望塔通过雷达追踪这架飞机的行踪。
- There's not much leg-room in these aircraft. 这些飞机的坐位没有什麽伸腿的空间。
- Artillery and aircraft were involved in the action. 在这次战斗中，使用了大炮和飞机。
- He sat at the controls of the aircraft. 他坐在飞机的操纵装置前。
- She opened the envelope with her fingertips. 她用指尖弄开了信封。
- The aircraft company deals with freight only. 这家航空公司只经营货运业务。
- The envelope's seal was torn open. 信封封缄被撕开了。
- All aircraft must fuel before flight. 所有飞机飞行前都必须加油。
- The (flap of the) envelope was unstuck. 信封(的封口)没粘住。
