can·ker

noun

/ˈkæŋkə(r)/

/ˈkæŋkər/

[uncountable] a disease that destroys the wood of plants and trees（植物的）溃疡病，枝枯病
- Cut out lesions on branches caused by canker.剪掉树枝上由溃疡病引起的病斑。
[countable] a damaged area in a plant or tree caused by disease or injury（植物的）溃疡，溃疡部位
- Check trees for cankers.检查树木是否有溃疡病。
(also canker sore (both North American English), British English mouth ulcer)
a small painful area in the mouth口腔溃疡
[uncountable] a disease that causes painful areas in the ears of animals, especially dogs and cats（尤指猫狗耳部的）溃疡，痈，疮
[countable] (literary) an evil or dangerous influence that spreads and affects people’s behaviour（蔓延并影响人的行为的）邪恶，祸害，祸患，腐败Topics Dangerc2

Word OriginMiddle English (denoting a tumour): from Old French chancre, from Latin cancer ‘crab’ (see cancer).

单词	canker
释义	can·ker noun /ˈkæŋkə(r)/ /ˈkæŋkər/ [uncountable] a disease that destroys the wood of plants and trees（植物的）溃疡病，枝枯病 Cut out lesions on branches caused by canker.剪掉树枝上由溃疡病引起的病斑。 [countable] a damaged area in a plant or tree caused by disease or injury（植物的）溃疡，溃疡部位 Check trees for cankers.检查树木是否有溃疡病。 (also canker sore (both North American English), British English mouth ulcer) a small painful area in the mouth口腔溃疡 [uncountable] a disease that causes painful areas in the ears of animals, especially dogs and cats（尤指猫狗耳部的）溃疡，痈，疮 [countable] (literary) an evil or dangerous influence that spreads and affects people’s behaviour（蔓延并影响人的行为的）邪恶，祸害，祸患，腐败Topics Dangerc2 Word OriginMiddle English (denoting a tumour): from Old French chancre, from Latin cancer ‘crab’ (see cancer).
随便看	out-of-date out of depth out of doors out-of-doors out of earshot out of earshot of somebody out of earshot (of somebody/something) out of earshot of somebody/something out of earshot of something outoffice outoffices out of frying pan in to fire out of frying pan in to the fire out off your head out of gear out of hand out-of-hand out of harm’s way out of hearing out of here out-of-humor out of it out-of-it out of joint out of keeping