It will remain an indelible stain on his memory.

　　這將成為他記憶中一個不可磨滅的污點。

　　Using too much water could spread the stain.

　　用水太多可能使污跡擴散。

　　How can I get this stain out?

　　我怎么才能把這點污漬除去？

　　Darker colours are more practical and don't show stains.

　　深色不顯臟，更實用。

　　This detergent is good for getting stains out.

　　這種洗滌劑能清除斑漬。