I rubbed at the stain on the cloth.
我擦了擦布上的污渍。
Immaculate means "without stain."
无原罪就是“无污点“的意思。
They stain the mouse's brain tissue, so that different kinds of synapses show up in different colors.
他们对老鼠的脑组织进行染色，这样不同种类的突触就可以呈现不同颜色。
If you do choose to consume beverages that stain, consider using a straw so the liquid is not hitting off your teeth.
如果你真的选择喝那些会在牙齿上留下污渍的饮料，你可以考虑用吸管，这样饮料就不会碰到你的牙齿。
If you happen to spill some gas or oil on the floor, newspaper will help absorb the spill and can prevent a permanent stain on concrete .
如果你碰巧将一些汽油或机油洒在地板上，报纸将助于吸收倾洒物并且可以防止混凝土永久染色。
When travelling abroad, people should be extremely careful of their actions as their misbehaviours will stain their motherland's reputation.
出国旅游时，人们应该多加留意自己的行为，因为他们不恰当的行为会玷污他们祖国的声誉。
If we look forward to the end of the term, we'll read The Human Stain, which is about a man, Coleman Silk, who tries to and succeeds in passing as Jewish.
如果我们期待一下期末，我们将会读到《人性的污点》，写一个叫ColemanSilk的男人努力并成功地假装成犹太人。
Using social media screening appropriately can help ensure that you don't hire a toxic employee who will cost you money or stain your company's reputation.
适当地使用社交媒体审查有助于确保你不会雇用一个品行恶劣的员工，这种员工可能让你损失金钱或败坏公司的声誉。
For instance, they were used to stain previously invisible microbes and bacteria, allowing researchers to identify such bacilli as tuberculosis, cholera, and anthrax.
例如，用它们来给以前看不见的微生物和细菌染色，从而使研究人员能够识别出结核、霍乱和炭疽等杆菌。
Do you think you'll be able to get this ink stain out of my pants?
你认为你能把我裤子上的墨迹洗掉吗？
Now if I can stain in some way, if I can somehow label the DNA fragments that I'm interested in, I could find out where those fragments are on this gel.
现在如果我有染色的某种方法，如果玩可以以某种方式对我感兴趣的DNA片段进行标记，我就能知道这些片段在这凝胶板上的位置。
The objective is to investigate the possibility of auramine O fluorescent dyes in specific stain of pathology.
目的是要探讨金胺O荧光染色法应用在病理特殊染色上的可行性。
Microscopically, a gram stain reveals gram-negative diplococci within a neutrophil, typical for Neisseria meningitidis.
在显微镜下，革兰氏染色显示中性粒细胞内有革兰氏阴性双球菌，这是脑膜炎奈瑟氏球菌的典型特征。
The cytoarchitectonic organization of the cervical spinal cord of the tree shrew was studied with Nissl's stain method.
用尼氏染色法研究了树鼩颈脊髓的细胞构筑结构。
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。
Polyethylene is also easy-to-clean and stain resistant.
聚乙烯容易清洗且耐脏。
Finding a blood stain on surfaces is harder than it sounds.
在物体表面找寻血迹比想象中可要难多了。
Tobacco, coffee, cavities, aging and drugs can stain teeth.
烟草，咖啡，蛀牙，年龄增长，药物都会使牙齿着色。
Outside, the sky turned the shade of a washed out blood stain.
窗外，天空忽然呈现出血迹斑斑的阴云。
After five hours I've managed to conjure a headache and a stain on the carpet.
五个小时之后，我最终变出了一个头痛和地毯上的一滩污渍。
It only takes a little hematite, Merrison said, to stain all the dust a reddish hue.
只需要少许的赤铁矿，梅里逊说，就能将全部尘埃染成微红。
All the police found the next morning was a small stain on the bed that looked like blood.
转天早上，警察在床上只发现了一小块污渍，似乎是血迹。
Maybe that shirt with a stain on the sleeve has a great collar for wearing under a sweater.
也许一件袖口有污迹的衬衫，却有很好的衣领可以用来穿在羊毛衫下做搭配。
For tear stains in a pillow case, treat them the sameway you would a perspiration stain.
至于枕头上的泪痕，处理的方法和清洗汗渍一样。
Don't buy any clothes at all, neglecting to replace items that are torn, stain or threadbare.
一件衣服都不买，忽略自己应该换掉那些已经撕破、磨损以及沾染上污渍的衣服的事实。
His wit in the combat, as gentle as bright, Never carried a heart-stain away on its blade.
即使身处战场，他依旧仁慈聪慧，绝不在刀口留下心灵的污点。
This gets stuck on the cell's surface and then reacts with a stain that is added to the sample.
这种酶可以粘附到细胞的表面然后和一种添加的样本上的染色剂反应。
If the stain persists, mix white vinegar with salt in equal proportions and rub with the sponge.
如果污渍仍然不能去除，就将盐和醋按相同比例混合，再用海绵擦拭。
If the stain persists, mix white vinegar with salt in equal proportions and rub with the sponge.
如果污渍仍然不能去除，就将盐和醋按相同比例混合，再用海绵擦拭。
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