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痂
A scab is a hard, dry covering that forms over the surface of a wound.
例句
The area can be very painful until scabs form after about ten days.
這個傷口會疼痛難忍，直到大約 10 天后結痂才會好些。
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在罷工期間堅持上工的人;破壞罷工者;工賊
People who continue to work during a strike are called scabs by the people who are on strike.
例句
He hired scabs to replace strikers.
他雇了工賊接替罷工者。
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N-UNCOUNT
瘡痂病;瘡痂斑點
Scab is a disease that can affect apple trees, pear trees, and potato plants.