have the front to do something

• 居然有脸(做某事)；竟好意思

have the front to do something的用法和样例：

例句

1. He began by making personal remarks about my family and then he had the gall to ask me to lend him some money.
   他先对我家进行人身攻击，然后竟好意思向我借钱。