It will remain an indelible stain on his memory.
这将成为他记忆中一个不可磨灭的污点。
Using too much water could spread the stain.
用水太多可能使污迹扩散。
How can I get this stain out?
我怎么才能把这点污渍除去？
Darker colours are more practical and don't show stains.
深色不显脏，更实用。
This detergent is good for getting stains out.
这种洗涤剂能清除斑渍。