swirl crotch

例句：

1. 1.The man's crotch was stained with his own urine.
   那人的阴囊被自己的尿液染红了。
2. 2.He had a crotch full of bruises from the fall.
   他从那次跌倒中摔伤了阴囊，那里满是淤青。