vt. 1.弄脏，染污 (with); 沾污，玷污(名誉等)。 2.在(玻璃、生物切片等上面)染色。 3.在(糊墙纸上等)着色，印上颜色。 vi. 变肮脏，染污；生锈。 It is stained with ink. 它让墨水弄脏了。 hands stained with blood 沾满血的手；凶手。 stained glass 彩色玻璃，彩画玻璃。 This fabric stains easily. 这种织品容易弄脏。 n. 1.污点；变色；锈；瑕疵 (on; upon; of)。 2.色斑。 3.色素，染色剂，着色剂。 短语和例子 without a stain on one's character 性格上没有缺点。 adj. -able
an act that brings discredit to the person who does it; "he made a huge blot on his copybook" 同义词：blot, smear, smirch, spot,
a soiled or discolored appearance; "the wine left a dark stain" 同义词：discoloration, discolouration,
a symbol of disgrace or infamy; "And the Lord set a mark upon Cain"--Genesis 同义词：mark, stigma, brand,
the state of being covered with unclean things 同义词：dirt, filth, grime, soil, grease, grunge,
(microscopy) a dye or other coloring material that is used in microscopy to make structures visible
color for microscopic study; "The laboratory worker dyed the specimen"
color with a liquid dye or tint; "Stain this table a beautiful walnut color"; "people knew how to stain glass a beautiful blue in the middle ages"
produce or leave stains; "Red wine stains the table cloth"
make dirty or spotty, as by exposure to air; also used metaphorically; "The silver was tarnished by the long exposure to the air"; "Her reputation was sullied after the affair with a married man" 同义词：tarnish, maculate, sully, defile,
A stain is a discoloration that can be clearly distinguished from the surface, material, or medium it is found upon. They are caused by the chemical or physical interaction of two dissimilar materials.
例句与用法
1.
These stains wo n't come off , i am afraid . 我看，这些污点去不掉。
2.
We papered over the stains on the wall . 我们贴上壁纸盖住了墙上的污斑。
3.
I rubbed hard but the stain just would not go . 我使劲擦也擦不掉那污迹。
4.
The incident stained his career . 那件小事给他的事业抹上了污点。
5.
Stain of the sediment reveals numerous bacteria . 尿沉渣染色显示无数细菌。
6.
Nothing will touch these stains . 没有什么东西能消除这些斑点。
7.
There is an ink stain on your shirt . 你的衬衫上有一个墨水斑。
8.
How much stain should i buy for the table ? 给这张桌子上色，我得买多少颜料？
9.
I took out stains from my clothes . 我去掉了衣服上的污渍。
10.
A smear of the fluid should be stained and examined . 应作穿刺液涂片染色检查。
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