| 词汇 | stain |
| 释义 | stain verb uk /steɪn/ us /steɪn/ stainverb (MARK)C2[ I or T ] to leave a mark on something that is difficult to remove: 沾污，染污;留下污迹 Tomato sauce stains terribly - it's really difficult to get it out of clothes.让番茄酱沾上很麻烦——很难把它从衣服上洗掉。 While she was changing the wheel on her car, her coat had become stained with oil.她给汽车换轮胎时，外套沾上了油污。 [ I ] If a material stains, it absorbs substances easily, causing it to become covered with marks, or coloured by a chemical: 易染污;易着色 This carpet is ideal for the kitchen because it doesn't stain easily.这块地毯很适合在厨房里用，因为它很耐脏。 [ T ] to change the colour of something using a chemical: 给…染色;给…着色 She stripped the floorboards and stained them dark brown.她刮掉原来的漆，把地板刷成了深棕色。 Water and other liquids can stain unprotected wood surfaces.水和其他液体会污损未加保护的木材表面。 Lily pollen stains really badly. Red wine stains. The wood itself was light but I stained it darker. You can stain wood in different colours. Making things dirty & untidy blacken blot clutter clutter something up contaminate dirty foul mess mired mix someone/something up muddle muddle something up muddy muss pollute polluter soil sully the polluter pays principleidiom throw something into disarray You can also find related words, phrases, and synonyms in the topics: Colour - general words stainverb (SPOIL)C2[ T ]literary to permanently spoil something such as someone's reputation: 败坏，玷污（名声等） Several important politicians have had their reputations stained by this scandal.好几位重要的政界人士都因为这起丑闻而名声受损。 The country's history is stained with the blood of (= the country is guilty of killing) millions of innocent men and women.这个国家的历史沾满了数百万无辜者的鲜血。 Damaging reputation anti-defamation aspersion besmirch black mark blacken defamatory defame demonize dog drag someone's name through the mire/mudidiom hatchet job malign scurrility scurrilous scurrilously self-immolation show someone in a bad lightidiom slur smear tarnish stain noun uk /steɪn/ us /steɪn/ stainnoun (MARK)B1[ C ] a dirty mark on something that is difficult to remove: 污渍;污点 a blood/grass stain血污／草渍 You can remove a red wine stain from a carpet by sprinkling salt over it.地毯上红酒的污渍可以通过撒些盐来清除。 a mark on something markThe backs of the chairs have left marks on the wall. stainShe had grass stains on her white jeans. smearHe had smears of tomato ketchup on his shirt. smudgeNo matter how often I wash my hands, I leave smudges all over my phone's screen. blotchHe had blotches all over his face. speckShe looked through the old camera lens and saw specks of dust. [ C ] a chemical for changing the colour of something染色剂;着色剂 Dirt & untidiness bloodstain blotch clutter contaminant contamination crud fleck grime grunge gunge gunk muck pollutant polluter recontamination scrappiness scruff shambles slime slob You can also find related words, phrases, and synonyms in the topics: Chemistry: types of chemical stainnoun (DAMAGE)[ S ]literary permanent damage to someone's reputation or character: 污点 His solicitor said, "He leaves this court without a stain on his character."他的律师说：“他走出法庭时名声将丝毫无损。” Damaging reputation anti-defamation aspersion besmirch black mark blacken defamatory defame demonize dog drag someone's name through the mire/mudidiom hatchet job malign scurrility scurrilous scurrilously self-immolation show someone in a bad lightidiom slur smear tarnish stain | American Dictionarystain verb[ I/T ] us/steɪn/ to leave a mark on something that is difficult to remove, or to become colored or spoiled by a mark: [ T ]Strawberry juice stained my shirt. [ I ]This carpet is practical because it doesn’t stain easily. If you stain wood, you put a substance on it that changes its color: [ T ]Instead of painting the woodwork, she stained it dark brown. stainlessadjectiveus/ˈsteɪn·ləs/ stain noun[ C ] us/steɪn/ a dirty mark on something that is difficult to remove: The tomato sauce left a stain on the tablecloth. A stain is also a thin, oily liquid used to change the color of wood. biology A stain is also a chemical used to color cells to make them easier to see when studying them under a microscope. Examples of stainstain The product was analyzed by agarose (2%) gel electrophoresis and stained with ethidium bromide. We have previously demonstrated that staining for intracellular cytokines correlated with cytokine secretion. The protocol is especially robust with respect to absence of background staining that can limit assay interpretation. Specimens were cut longitudinally to the midline, and 5-m sections mounted for staining with hematoxylin and eosin or toluidine blue. In each assay, five categories of staining were observed as defined previously. The staining intensity was categorically coded as 0 (absent), 1 (weak), 2 (moderate), or 3 (strong). In the progression from normal mucosa to metaplasia to dysplasia, the results obtained with both antibodies suggested differences in staining frequency and intensity. We found minor differences in the staining pattern between methanol and paraformaldehyde fixed cells, but immuno-labeled nuclear structures were visible regardless of fixation. The sections were stained with antibodies for those two antigens. Nerves estimated to contain greater than 25 dark staining axons per section but still maintaining a significant portion of live axons were rated as moderate. Serial sagittal sections passing through the optic nerve were collected, stained with hematoxylin and eosin, and analyzed for pathologic changes. Sections (6 m) were cut from both faces of bisected tissues and stained with hematoxylin and eosin. There is no difference in staining pattern in regard to the subtypes of the rhabdomyosarcomas, namely embryonal or alveolar subtypes. Distribution and morphology of human cone photoreceptors stained with anti-blue opsin. Between 30 and 60 min we frequently observed parasites having surface patches on the schistosomulum body but with little or no staining on the anterior. See all examples of stain These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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