How did I know what were the thoughts and emotions behind that placid brow and those cool gray eyes?

在她那平静的前额和冷冷的灰色的眼睛后面隐匿着什么思想和感情，我怎能知道呢？

Owning a cool gray couch instead of an ugly, green one isn't going to fix that.

拥有一张凉爽的灰色沙发而不是一张丑陋的绿色沙发并不能解决这个问题。

It was the cool gray dawn, and there was a delicious sense of repose and peace in the deep pervading calm and silence of the woods.

那是凉爽的灰色黎明，树林深处弥漫着平静和寂静，给人一种宁静祥和的感觉。