Correct

嘎渣儿

/ gá zhār / 
Strokes

Example

As a Noun

scab/crust (over a cut or wound)

1
Bǎ
把
gázhār
嘎渣
  
儿
náo
挠
diào
掉

pick the scabs; scratch the scabs off

As a Noun

burnt crust (of a cakes, bread, etc)