It will remain an indelible stain on his memory.
這將成為他記憶中一個不可磨滅的汙點。
Using too much water could spread the stain.
用水太多可能使汙跡擴散。
How can I get this stain out?
我怎麼才能把這點汙漬除去？
Darker colours are more practical and don't show stains.
深色不顯髒，更實用。
This detergent is good for getting stains out.
這種洗滌劑能清除斑漬。