| 单词 | blackhead |
| 释义 | blackhead noun[C] uk/ˈblæk.hed/us/ˈblæk.hed/a verysmall,darkspoton theskincausedby ablockedpore(=smallholein the skin'ssurface) 黑头粉刺Skin complaints & blemishes
Examplesofblackheadblackhead The nematode causes a disease condition called toppling orblackheaddisease in plants. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.It is a form ofblackheaddisease in poultry. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Oily skin is usually prone to blackheads, whiteheads, spots and pimples. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Oxidation rather than poor hygiene or dirt causes blackheads to be black. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.A comedo may be open to the air (blackhead) or closed by skin (whitehead). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.They are often confused with blackheads, a type of comedo. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.A comedo can be open (blackhead) or closed by skin (whitehead), and occur with or without acne. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.For this reason, those who frequently erupt with whiteheads or blackheads are advised to avoid topical use of this substance on the skin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Unlike blackheads, however, they can not be removed and are a permanent part of the human skin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.In acne, the follicles become clogged with black sebaceous material, forming comedones (also known as blackheads). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Some dogs are prone to have acne or at least blackheads. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Blackheads can be removed across an area with commercially available pore-cleansing strips or the more aggressive cyanoacrylate method used by dermatologists. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Due to this antimicrobial activity, it can be used to clear skin from blackheads and spots, but it must always be properly diluted with a carrier oil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The negative aspect of the oily-skin type is that oily complexions are especially susceptible to clogged pores, blackheads, and buildup of dead skin cells on the surface of the skin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.A characteristic symptom of the infection is the development of cyanotic (bluish) discoloration on the head, giving rise to the common name of the disease,blackhead. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.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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