discoloured

英 [dɪsˈkʌləd]

美 [dɪsˈkʌlərd]

v.  (使)变色，退色
discolour的过去分词和过去式

过去分词：discoloured　过去式：discoloured　

BNC.20147

柯林斯词典

in AM, use 美国英语用 discolor


• V-ERG (使)变色;(使)褪色
  If somethingdiscoloursor if itis discolouredby something else, its original colour changes, so that it looks unattractive.
  1. A tooth which has been hit hard may discolour...
     受过重击的牙齿可能会变色。
  2. Some oil had seeped out, discolouring the grass.
     有些油渗出来了，把草地染得变了颜色。

双语例句

• These murals have been discoloured with the passage of time.
  这些壁画已年久失色。
• In half a minute he had reached the port scuppers, and picked, out of a coil of rope, a long knife, or rather a short dirk, discoloured to the hilt with blood.
  只有半分钟的工夫他已横越甲板爬到左舷的排水孔那里，从盘成一堆的绳子底下摸出一把长长的小刀，可以说是一把短剑，上面的血一直染到了刀柄上。
• The sky was a tumult of discoloured clouds.
  天空中乱纷纷地浮动着污浊的云。
• She had ceased crying and only sobbed, wiping her red, discoloured face with the end of the kerchief on her head.
  她已经停止号哭，只是抽抽搭搭地呜咽着，用头巾梢儿擦着她那红块斑斑的脸。
• The flywheel must be replaced if it is damaged or discoloured.
  如果表面损坏或脱色，则必须更换飞轮。
• Immediately above his head there hung three discoloured metal balls which looked as if they had once been gilded.
  他的头顶上面挂着三个褪了色的铁球，看上去以前曾经是镀过金的。
• Corrosion can be identified by leads that are tarnished or discoloured instead of bright.
  如果导线失去光泽或变色而不再亮泽，则可以判断为已受腐蚀。
• Copper and copper alloy wires are easily to be oxidized and discoloured during production, transportation and storage.
  铜及铜合金线在生产、贮存、运输过程中极易发生氧化及变色。
• Sunshine discoloured many materials.
  阳光使许多材料褪色。
• Observation on clinical treatment of discoloured teeth by light-cured-resin following home bleaching
  软托盘脱色法、光固化树脂治疗变色牙的临床研究