pick a scab
collocation抠痂
Don't pick a scab even if it itches.
即使发痒也不要抠痂。
痂；疮痂
先理解核心含义，再看它在真实句子里的用法。
痂；疮痂
A dry crust that forms over a cut or wound as it heals.
The union members called the replacement worker a scab.
工会成员称那名为罢工顶替的工人为工贼。
伤口、水疱或脓疱愈合时形成的硬痂。
An incrustation over a sore, wound, vesicle, or pustule, formed during healing.
罢工期间工作(或提供工人)的人
someone who works (or provides workers) during a strike
兽疥癣,尤指绵羊身上的。
The mange, especially when it appears on sheep.
愈合皮肤病变的结痂状表面
the crustlike surface of a healing skin lesion
He picked at the scab on his knee, making it bleed again.
他抠了抠膝盖上的痂，结果又流血了。
The doctor said not to remove the scab because it protects the wound.
医生说不要揭掉那层痂，因为它保护着伤口。
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抠痂
Don't pick a scab even if it itches.
即使发痒也不要抠痂。
结痂（过程）
Scab formation is a normal part of wound healing.
结痂是伤口愈合的正常过程。
痂组织
The scab tissue protects the new skin underneath.
痂组织保护下面的新皮肤。
马铃薯疮痂病
Potato scab can make the tubers unsightly.
马铃薯疮痂病会使块茎不好看。
顶替罢工者的人；工贼
The factory hired scab labor during the strike.
罢工期间工厂雇用了顶替罢工者的人。
结痂；愈合
The wound should scab over within a week.
伤口应在一周内结痂。
老是抠痂；反复揭开伤疤
Stop picking at that scab—it will heal faster if you leave it alone.
别再抠那块痂了，你不碰它好得更快。
Use scab naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象伤口上结了一层硬硬的痂(scab)，像一小块‘壳’，别去抠，等它自己掉。
语域：mixed 常见场景：医疗/皮肤护理、劳工/罢工、农业/植物病害 scab 有多个常见含义，语域会随着使用场景明显变化：在医疗或日常中通常指伤口结的痂，属于中性说法；在劳工语境中指破坏罢工者；在农业中指植物疮痂病等，多用于专业讨论。建议结合上下文判断具体含义。
可数名词，常指罢工期间工作的人或伤口愈合时的痂。
Dictionary facts from ECDICT, WIKTIONARY.