1N-COUNT 痂 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.
这个伤口会疼痛难忍，直到大约 10 天后结痂才会好些。
2N-COUNT 在罢工期间坚持上工的人;破坏罢工者;工贼 People who continue to work during a strike are called scabs by the people who are on strike. 在罢工期间坚持上工的人;破坏罢工者;工贼 [disapproval]
He hired scabs to replace strikers.
他雇了工贼接替罢工者。
Scab is also an adjective.
The mill was started up with scab labor.
罢工期间有人坚持上工，使得工厂重新开始运转。
3N-UNCOUNT 疮痂病;疮痂斑点Scab is a disease that can affect apple trees, pear trees, and potato plants. 疮痂病;疮痂斑点