mixed bag

1. N-SING If you describe a situation or a group of things or people as a mixed bag, you mean that it contains some good items, features, or people and some bad ones. (物或人的)大杂烩; (局势的)混杂[usu 'a' N, oft N 'of' n]

Research on athletes and ordinary human subjects has yielded a mixed bag of results. 对运动员和普通人的研究得出了混合的结果。

This autumn's collections are a very mixed bag. 今年秋装系列风格迥异。