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N-COUNT A scab is a hard, dry covering that forms over the surface of a wound. 痂
The area can be very painful until scabs form after about ten days.
这个部位会非常疼痛,直到大约十天后结了痂为止。
The area can be very painful until scabs form after about ten days.
这个部位会非常疼痛,直到大约十天后结了痂为止。
He also has scabs all over his nose and ears.
他鼻子和耳朵上的所有伤疤都已结痂了。
So when you cut yourself and your skin scabs over and heals, you're seeing anabolism at work.
所以,当皮肤割伤后会自动结疤愈合,这就是合成代谢在起作用。
This process, I said, this ancient process of taking scabs from patients and introducing them to people you wanted to protect, was called variolation.
这个过程,我想,这个从病人身上取痂,接种到你想保护的人身上的古老过程,叫做天花接种
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