OG10, Q86, His right hand and arm crippled by a sniper’s bullet during the First World War,Horace Pippin, a Black American painter, worked by holding the brush in his right hand and guiding its movements with his left.
'His right hand....,' 这一部分与主句是什么关系啊? 这种用法好像没有见过,大家有见过其他类似的句子吗?