名詞 staining:

1. (histology) the use of a dye to color specimens for microscopic study
2. the act of spotting or staining something
   同義詞：spotting, maculation

動詞 stain:

1. color with a liquid dye or tint
   同義詞：stain
2. produce or leave stains
   同義詞：stain
3. make dirty or spotty, as by exposure to air; also used metaphorically
   同義詞：tarnish, stain, maculate, sully, defile
4. color for microscopic study
   同義詞：stain

1. Such a man is a stain to humanity.
   這種人是人類的恥辱。
2. He stained the family honor.
   他玷污了家族的榮譽(yù)。
3. He stained some slides and looked at them under the microscope.
   他給幾張載玻片上染了色，然后放到顯微鏡下觀察。
4. She steeped the stained cloth in bleach overnight.
   她把有污跡的衣服在洗衣粉里浸了一夜。