stain

vi.弄脏；污染；被玷污

vt.玷污，染污；败坏（名声）；给…染色

n.污点；瑕疵；着色剂；色斑

verb

1. （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。
2. 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。
3. 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

1. 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。
2. 染色剂；着色剂
   a liquid used for changing the colour of wood or cloth
3. （名声上的）污点
   something that damages a person's reputation, so that people think badly of them

vt. 沾污；败坏；给…着色 vi. 污染；被沾污；被染污 n. 污点；瑕疵；着色剂 n. (Stain)人名；(德)施泰因；(塞、瑞典)斯泰因

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

stain 弄脏，玷污，斑点，污渍

来自中古英语 steinen,涂彩，着色，来自古诺斯语 steina,涂彩，着色，来自 steinn,石头，矿石， 矿物蓝，颜色，色彩，来自 Proto-Germanic*stainaz,石头，词源同 stone.其原义可能是将有颜 色的矿石磨粉后用于涂色，如中国古代常用的朱砂就是一种非常重要的颜色原料，后引申词 义弄脏，玷污，斑点，污渍等。

1. We painted the wooden floor with a white stain.
   我们把木地板刷成了白色。
2. A dark red stain was spreading across his shirt
   一块深红色的污渍正在他的衬衫上渗开。
3. Remove stains by soaking in a mild solution of bleach.
   用温和的漂白剂浸泡以去除污迹。
4. White clothes stain easily.
   白衣服容易弄脏。
5. This ink stain won't rub out.
   这墨水渍擦不掉。
6. It will remain an indelible stain on his memory.
   这将成为他记忆中一个不可磨灭的污点。
7. The damp rising from the ground caused the walls to stain badly.
   地面上升起的湿气使墙壁的颜色变得很难看。
8. I can't get rid of this ink stain on my coat.
   衣服上的这块墨迹洗不掉。
9. Don't worry about the stain on your coat; it will easily wash out.
   别为你衣服上的污迹发愁，那很容易洗掉。
10. I found a stain here.
    我发现这里有一个污点。
11. 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。
12. Health professionals also employ a fluorescein stain to detect ulcers of the cornea.
    卫生专业人员还采用了荧光染色检测的角膜溃疡。
13. 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。
14. There is a stain on your dress.
    你的衣服上有个污点。
15. Can you get this stain out of my tie?
    你能除掉我领带上的渍痕吗？
16. This coat has a stain on the sleeve. I noticed it as soon as I got home.
    这件外套的袖子有个污点。我一回到家就发现了。
17. His hands stain the blood of countless children.
    他的手上沾满了无数儿童的鲜血。
18. 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。
19. 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。
20. 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。
21. The blood had left a stain on his shirt.
    他的衬衫上留下了血迹。
22. 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。
23. You can grind, polish, stamp or stain it.
    你可以磨、波兰、邮票或污点。
24. The innervation of rat thymus was observed by silver stain method.
    采用改良的银染色法观察了大鼠胸腺神经纤维的分布。
25. That wine stain on my shirt has virtually disappeared.
    我衬衫上那一点酒渍差不多已经消失了。
26. Look, the stain's gone. it's disappearing ink.
    看，墨迹没有了，这是会消失的墨水。
27. There is a stain on my coat.
    我的上衣上有一块污迹。
28. But when I tested the stain resistance.
    但当我测试其抗着色性时。