stain
名词 stain:
a soiled or discolored appearance
同义词:discoloration, discolouration
(microscopy) a dye or other coloring material that is used in microscopy to make structures visible
the state of being covered with unclean things
同义词:dirt, filth, grime, soil, grease, grunge
a symbol of disgrace or infamy--Genesis
an act that brings discredit to the person who does it
动词 stain:
color with a liquid dye or tint
produce or leave stains
make dirty or spotty, as by exposure to air; also used metaphorically
同义词:tarnish, maculate, sully, defile
color for microscopic study