| 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. | 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。 |
| 4. | Did the cleaning fluid work （ on that stain ）
这种洗涤剂（对那块污斑）管用吗？ |
| 5. | We ' ll 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 |
| 6. | We papered over the stains on the wall
我们贴上壁纸盖住了墙上的污斑 |
| 7. | Material staining is created from this as well
卷料污斑也由此产生。 |
| 8. | Resilient floor coverings - determination of resistance to staining
弹性地板覆盖物.耐污斑性的测定 |
| 9. | Did the cleaning fluid work ( on that stain ) ? ie did it remove it
这种洗涤剂（对那块污斑）管用吗 |
| 10. | The museum of art has a collection of chromolithographs which were printed in london and dated back to the 1800s
图一修复前版画上的深褐色污斑香港艺术馆藏有一批于 |
