黑头的英文：
comedo, comedones（复数形式）

Any of various birds,such as the scaup,with dark head markings.
黑头鸟一种以头部呈黑色为特征的鸟，如斑背潜鸭

(deep) pore cleanser/striper pore refining
去黑头

Never squeeze blackheads, spots or pimples.
千万不要挤黑头、痣或粉刺。

His cheeks were spotted with blackheads.
他的双颊上长了一些黑头。

Mr White is a racist;he calls Mr Lopez from Mexico a greaseball.
怀特先生是个种族主义者，他把来自墨西哥的洛佩斯先生叫做黑头鬼。

"These spots can be blackheads, whiteheads, pimples and cysts. "
这些斑点有的是黑头粉刺,有的是粟粒疹,有的是丘疹,有的是囊肿。

"f a pore gets blocked but stays open, the top surface can darken and you are left with a blackhead."
而如果毛孔堵塞但没有关闭,毛孔的表面颜色就会加深,黑头粉刺就出现了。

Even with the routine use of drugs to prevent blackhead, the two species should never be run together
即使采用药物防止黑头病作为常规措施，这两种家禽也永远不能混群。

A plug of keratin and sebum within a hair follicle that is blackened at the surface.
黑头粉刺在带毛小囊内由角朊和脂肪组成的粉刺，表面呈黑色