The old man is dying.THe doctor are doing their best to save him.=The doctor are _ their _ to savethe _ old man
问题描述：
The old man is dying.THe doctor are doing their best to save him.=The doctor are _ their _ to save
the _ old man
答
The doctors are doing/trying their best to save the dying old man.
答
The doctors are trying their best to save the dying old man.
答
the doctors are doing their best to save the dying old man
答
trying best
答
trying ;best; dying
答
顶楼上 try ... best to do 表示尽全力做什么