常见例句Stop picking at that scab.别再去摸伤口上的痂。A dry scab or slough formed on the skin as a result of a burn or by the action of a corrosive or caustic substance.焦痂由烧伤或通过腐蚀或侵蚀物质作用而导致皮肤形成的干疤或死肉 返回 scabbing