to a man 一致，毫无例外

Words

to a man 是一个很地道的用法。表示“一致，毫无例外”。 固定的介宾搭配，当作副词使用，修饰动词。

to a 'man | to the last 'man
   used to emphasize that sth is true of all the people being described
   一致；毫无例外:
   They answered 'Yes,' to a man.
   他们异口同声地回答:"是。"
   They were all destroyed, to the last man.
   他们无一例外全部被歼。

to a 'man(written)

■ used to emphasize that sth is true of all the people being described﹙用于强调﹚一致，毫无例外:

To a man, they all agreed. 他们全都赞成此事。

to a man — used to say that all the members in a group of men said, did, or thought the same thing
   He worried that some of his friends might object, but, to a man, they supported his decision. [=all of them supported his decision]


to a man 要注意区别：to the last man
   
  to the last man:  until all the men in a group are killed, defeated, etc.
    They vowed to fight to the last man.