英文单词填空(white)+(black)=( ),(blue)+( )=(purple)

问题描述:

英文单词填空(white)+(black)=( ),(blue)+( )=(purple)
填上合适的表示颜色的英文单词.例:(blue)+(yellow)=(green)

(white)+(black)=( gray),(blue)+( red)=(purple)