您要查找的是不是：
- They place a guard at the door, lest the prisoner should find means of escape. 他们派了一个卫兵来看守房门,以免犯人逃跑。
- They placed a guard at the door, lest the prisoner should find means of escape. 他们派了一个卫兵来看守房门,以名犯人想办法逃走。
- place a guard at the door 在门口布岗
- The night nurse and a guard greeted me at the door. 值夜班的护士和一个守卫在门口接待了我。
- The captain posted guards at the door. 上尉在门口布了岗。
- They posted guards at the door . 他们在门口设岗。
- Got busted when a guard heard me going at the door with a crowbar. 我用铁撬开门的时候被一个警卫听到了，所以被抓。
- While two detective were on guard at the door,two others opened the parcel. 两个侦探在门边警卫时，另两名侦探打开了这个包裹。
- When I tried to enter the building ,the guard at the door challenged me . 我试图进入楼内时，门卫查问了我。
- When I tried to enter the building,the guard at the door challenged me. 我试图进入楼内时,门卫查问了我。
- When I tried to enter the building , the guard at the door challenged me . 我试图进入楼内时，门卫查问了我。
- While two detective were on guard at the door, two others opened the parcel. 两个侦探在门边警卫时，另两名侦探打开了这个包裹。
- There was a furious knock at the door. 有人在猛烈地敲门。
- At the gate a guard stopped him. 警卫在大门口挡住了他。
- There is a light rap at the door. 有轻轻的敲门声。
- At the school gate stood a guard. 校门口站着一个卫兵。
- The detectives were keeping guard at the door of the main building by turns to keep watch on the thieves movements. 侦探轮流在主楼的门口看守，监视着这伙盗贼们的行动。
- A sentry stood on guard at the corner. 一个哨兵在角落里站岗。
- Placing a guard there proved to be your downfall. 那里被安置一个守卫(无头将军)就是你失策的地方。
- I found a stray cat crying at the door. 我发现一只走失的猫在门口叫。
