discolour
英 [dɪsˈkʌlə(r)]
美 [dɪsˈkʌlər]
v. (使)变色，退色
现在分词：discolouring过去分词：discoloured第三人称单数：discolours过去式：discoloured复数：discolours
BNC.32959
牛津词典
verb
- （使）变色，退色
to change colour, or to make the colour of sth change, in a way that makes it look less attractive- Plastic tends to discolour with age.
塑料久而久之便会退色。 - The pipes were beginning to rust, discolouring the water.
管子开始生锈，水都变颜色了。
- Plastic tends to discolour with age.
柯林斯词典
- V-ERG (使)变色;(使)褪色
If something discolours or if it is discoloured by something else, its original colour changes, so that it looks unattractive.- A tooth which has been hit hard may discolour...
受过重击的牙齿可能会变色。 - Some oil had seeped out, discolouring the grass.
有些油渗出来了，把草地染得变了颜色。
- A tooth which has been hit hard may discolour...
in AM, use 美国英语用 discolor
双语例句
- A tooth which has been hit hard may discolour
受过重击的牙齿可能会变色。 - Some oil had seeped out, discolouring the grass.
有些油渗出来了，把草地染得变了颜色。 - Objective: The research turns over the function of Potentilla discolour bunge ( PDB) on the pancreatic islet B cells of the DM rat.
前言：目的研究翻白草对糖尿病大鼠胰岛B细胞的作用。 - They can discolour or damage your jewellery mountings.
你可以变色或损坏珠宝挂。 - Make sure the insecticide penetrates well into the surface: but be careful, as treatment may discolour light woods.
要确保杀虫剂深入表层，但也要当心，因这种处理会使淡色木材变色。 - Plastic tends to discolour with age.
塑料久而久之便会退色。 - The kinds discolour phenomena were categorized to different flowers in this study and tried to different flowers in this study and tried to find their cause.
以不同花卉材料在压制过程中颜色的变化为研究对象，对其色变现象进行了分类归纳。 - What mean these masterless and gory swords to lie discolour'd by this place of peace?
在这安静的地方，怎么横放着这两柄无主的血污的刀剑？ - Study on New Type Silver Discolour Inhibitor
新型银变色抑制剂的研究 - Wear resistance and discolour resistance are dependent not only on Sn content but on thickness of plating film.
镀层的耐磨性和抗变色性不仅与锡含量有关，也与镀层厚度有关。
同义词辨析
fade blanch bleach discolour whiten【导航词义：颜色变浅】
fade v. （使）褪色
〔辨析〕指（使）某物失去颜色和光泽。
〔例证〕
The sun faded the blue-coloured tablecloth.
太阳把蓝色桌布晒掉色了。
This brand of jeans will not fade.
这个牌子的牛仔裤不会褪色。
太阳把蓝色桌布晒掉色了。
This brand of jeans will not fade.
这个牌子的牛仔裤不会褪色。
blanch v. （使）变白
〔辨析〕指（使）某人因害怕或震惊而变得面色苍白或（使）某物变白。
〔例证〕
Years of toil blanched his hair.
他因常年辛苦工作而白发苍苍。
This material blanches in the sun.
这种材料在阳光照射下会变白。
Her face blanched with fear.
她吓得脸色发白。
他因常年辛苦工作而白发苍苍。
This material blanches in the sun.
这种材料在阳光照射下会变白。
Her face blanched with fear.
她吓得脸色发白。
bleach v. 使（颜色）变淡，漂白
〔辨析〕指通过日照或使用化学品使某物颜色变淡或变白。
〔例证〕
How can I bleach my teeth at home?
我怎样才能在家美白牙齿呢？
The coat was bleached by the sun.
大衣被太阳晒得褪了色。
我怎样才能在家美白牙齿呢？
The coat was bleached by the sun.
大衣被太阳晒得褪了色。
discolour v. （使）变色
〔辨析〕指（使）某物变色，通常变得比以前难看。
〔例证〕
The sun discoloured the curtain day by day.
太阳逐渐把窗帘晒褪色了。
The apple was cut yesterday and it is already discoloured.
这个苹果是昨天切开的，现在已经变色了。
太阳逐渐把窗帘晒褪色了。
The apple was cut yesterday and it is already discoloured.
这个苹果是昨天切开的，现在已经变色了。
whiten v. 变白；使更白；漂白
〔辨析〕指（使）某人的脸色或某物变白或在原来的基础上变得更白。
〔例证〕
She visibly whitened when the game result was released.
比赛结果出来之后，她的脸色明显变白了。
Snow whitened the whole forest.
大雪为整片森林披上了银装。
How can I whiten my blouse?
我怎样才能漂白我的衬衫呢？
比赛结果出来之后，她的脸色明显变白了。
Snow whitened the whole forest.
大雪为整片森林披上了银装。
How can I whiten my blouse?
我怎样才能漂白我的衬衫呢？