stain

英 [steɪn]

美 [steɪn]

v. (被)玷污; 留下污渍; 给…染色(或着色); 玷污，败坏(名声)
n. 污点; 污渍; 染色剂; 着色剂; (名声上的)污点

过去分词：stained　现在分词：staining　复数：stains　过去式：stained　第三人称单数：stains　

Collins.2 / BNC.5778 / COCA.6708

牛津词典

verb

（被）玷污；留下污渍
to leave a mark that is difficult to remove on sth; to be marked in this way
1. I hope it doesn't stain the carpet.
  希望它别把地毯弄脏。
2. This carpet stains easily.
  这块地毯不耐脏。
3. The juice from the berries stained their fingers red.
  浆果汁把他们的手指染成了红色。
给…染色（或着色）
to change the colour of sth using a coloured liquid
1. to stain wood
  给木料上色
2. Stain the specimen before looking at it under the microscope.
  先把标本染色，再放到显微镜下观察。
3. They stained the floors dark brown.
  他们把地板涂成了深棕色。
玷污，败坏（名声）
to damage the opinion that people have of sth
1. The events had stained the city's reputation unfairly.
  这些事件使该市背上了不应有的恶名。

noun

污点；污渍
a dirty mark on sth, that is difficult to remove
1. a blood/a coffee/an ink, etc. stain
  血迹、咖啡渍、墨痕等
2. stubborn stains (= that are very difficult to remove)
  顽固的污渍
3. How can I get this stain out?
  我怎么才能把这点污渍除去？
4. The carpet has been treated so that it is stain-resistant (= it does not stain easily) .
  这地毯已经过处理，不易挂污。
染色剂；着色剂
a liquid used for changing the colour of wood or cloth
（名声上的）污点
something that damages a person's reputation, so that people think badly of them

N-COUNT 污迹;污渍
Astainis a mark on something that is difficult to remove.
1. Remove stains by soaking in a mild solution of bleach.
  用温和的漂白剂浸泡以去除污迹。
2. ...a black stain.
  黑色污迹
VERB 在…上留下污迹;玷污;染污
If a liquidstainssomething, the thing becomes coloured or marked by the liquid.
1. Some foods can stain the teeth, as of course can smoking.
  某些食物会在牙齿上留下污渍，吸烟当然也会。

You can remove a red wine stain from a carpet with salt.
你可以用盐去除地毯上红葡萄酒的污迹。
White clothes stain easily.
白衣服容易弄脏。
Mix a paste of salt and white vinegar and rub onto the stain.
将盐和白醋混合，涂抹在衣物上被锈迹污染的地方并揉搓。
HE stain, toluidine blue Dyeing and immunohistochemistry test were performed to observe the histomorphology.
行HE染色、甲苯胺蓝染色及免疫组化进行组织形态学观察。
A Prussian blue iron stain demonstrates the blue granules of hemosiderin in hepatocytes and Kupffer cells.
普鲁士蓝铁染色显示肝细胞和枯否细胞中含铁血黄素的蓝色颗粒。
This trichrome stain of the stomach demonstrates intense blue staining in the submucosa from the collagen deposition.
胃三色染色显示在黏膜下层胶原纤维沉积处染上深蓝色。
His hands stain the blood of countless children.
他的手上沾满了无数儿童的鲜血。
I found a stain here.
我发现这里有一个污点。
And the stain or paint applied to the wood often contains dangerous solvents.
和染色或涂料适用于木材往往含有危险溶剂。
There is a stain on your dress.
你的衣服上有个污点。