| 1. | We papered over the stains on the wall .
我们贴上壁纸盖住了墙上的污斑。 |
| 2. | He looked at a speck on the window glass .
他看到了窗玻璃上的一个污斑。 |
| 3. | Our tests are not polluting the atmosphere .
我们的试验并不沾污大气层。 |
| 4. | The brass surface must be free of contamination .
黄铜表面必须未经沾污。 |
| 5. | The waste material and water carried in sewage .
污水，污物从下水道中排出。 |
| 6. | The gutters were choked with filth .
街沟中淤积着污物。 |
| 7. | The blood soaked through his shirt and stained his jacket .
他的血透过衬衫染污了上衣。 |
| 8. | Her make-up is smudged .
她擦的化妆品已蹭污了。 |
| 9. | The immaculate is easily sullied .
皎皎者易污。 |
| 10. | We will have to paint over the dirty marks on the wall .
我们得用涂料把墙壁上的污斑遮盖住。 |
