hell-bent for leather

• 尽可能快； 极快

hell-bent for leather的用法和样例：

例句

1. He ran for his life as fast as he could.
   他尽可能快地逃走了。
2. The pace of the race is too severe to be maintained for long.
   比赛的速度极快，很难持久。
3. With a quick look the teacher reproved the child for whispering in class.
   老师以极快的表情斥责在课堂上交头接耳的同学。