The main factors are size of stain molecule, affinity between stainsolution and wood, etc.
主要受染料分子大小、染料溶液与木材的亲和性等因素制约。
2
If you get a stain on your outfit just before going out for the night, you'd think the best solution would be to change.
如果晚上即将出门时，衣服被弄脏了，你想到的最好方法可能是更换。
3
Solution: in case of spreading, sprinkle some salt on the stain and wipe it with soft brush. Then wipe it with towel which has water, detergent or alcohol.