污点

There's a smear on your shirt.

你衬衫上有。

The moths tapped and blurred at the window screen.

飞蛾在窗帘上跳来跳去, 弄上了许多。

The best way to get stains off collars is to use liquid detergent at full strength.

去除领子上的最好的办法是使用未稀的液体洗洁净。

I used a throw rug to hide (or conceal ) the stain on the carpet.

我用小块地毯（或 conceal ) 将地毯上的遮盖起来。