一双一副一条用英语怎么说_一双一副一条英文怎么写

One pair, one pair, one pair

一双一副───One pair and one pair;一条───One

each pair of pictures differed by gender and ethnicity, and each pair of pictures included one child with glasses and one child without glasses.───每组照片包括两张，一张照片上的孩子戴眼镜，另一张的不戴眼镜，而且每组照片中孩子的性别和民族都不同。