Cách sử dụng
The word 'grey' refers to a color that is a mixture of black and white. It is often used to describe things that are not black or white, but somewhere in between. For example, the cloudy sky can be described as grey, or a sweater that is not black or white, but a mixture of the two, can be called a grey sweater. You may also hear the word 'gray' used instead of 'grey'; they are both the same word, just spelled differently in different countries.