They picked over the strawberries and threw away the green ones.他们仔细挑选着草莓，把绿色的都扔掉了。

Pick over the fish to remove any bones.仔细检查这条鱼，把鱼骨全都去除。

The applications were thoroughly picked over and only the best applicants were given interviews.所有申请书都经过了详尽审核，唯有最优者获得了面试机会。