/steɪn; sten/
v
1 [esp passive 尤用于被动语态
*Tn, Tn.pr, Cn.a] ~ sth (with sth) change the colour of sth; leave or make coloured patches or dirty marks on sth, esp ones that are difficult to remove 改变某物的颜色; 染污, 沾污（某物）（尤指难以清除）
*fingers stained with nicotine 被尼古丁染黄的手指
* blood-stained hands 沾着血污的手
* a tablecloth stained with gravy 沾上肉汁的桌布
* The blackberry juice stained their fingers (red).黑莓汁把他们的手指给染（红）了.
2 [I] become discoloured or marked in this way 被染污; 被沾污
*Our white carpet stains easily. 我们的白地毯不耐脏.
3 [Tn, Tn.pr, Cn.a] colour (wood, fabric, etc) with a substance that penetrates the material; dye 给（木材、布等）染色或着色
*The biologist stained the specimen before looking at it through the microscope. 那位生物学家先把标本染色, 然後再通过显微镜进行观察.
* He stained the wood dark brown. 他把木头染成深褐色了.
4 [esp passive 尤用于被动语态
*Tn, Tn.pr] (fml fig 文, 比喻) bring disgrace to or damage (sb's reputation, good name, etc); blemish 玷污, 败坏（某人的名声等）
*The incident stained his career. 那件小事给他的事业抹上了污斑.

n
1 [U, C] liquid, etc used for staining wood, fabric, etc; dye 染色剂; 着色剂; 染料; 颜料
*How much stain should I buy for the table? 给这张桌子上色, 我得买多少颜料?
* a range of wood stains 木材着色剂系列.
2 [C] dirty mark or patch of colour caused by staining (stainv 1) 污点; 污斑; 污迹
*There's an ink stain on your shirt. 你的衬衫上有一个墨水斑.
* I can't get these coffee stains out of the carpet. 我弄不掉地毯上的咖啡污迹. [C] thing that causes disgrace (to a person's reputation, etc); moral blemish 玷污（某人名声等的）事物; 品德上的污点
*He left the court without a stain on his character. 他经法庭一役, 人格丝毫无损.