blood out of a stone

• adj. 脸色发紫

blood out of a stone的用法和样例：

例句

用作形容词 (adj.)

1. It is sick that tooth chamber of the person empurples?
   人的牙膛发紫是不是有病啊？
2. Her lips now he could see were almost blue so dark was the blood pulsating in them.
   眼下他看到她的嘴唇发紫了，她的嘴唇里面流动着的热血也就是那样的紫红色。

词汇搭配

• get blood out of a stone 做根本不可能的事(得...