To act in foolhardy manner

• 胆大妄为

To act in foolhardy manner的用法和样例：

例句

1. Evil-doers always act in foolhardy manner.
   犯罪者总是胆大妄为。
2. I didn't think she would have the brass neck to do that.
   我本以为她不会胆大妄为的。