n.an article in a newspaper or magazine or journal that represents opinions and ideas and discussion rather than bare facts
英汉双解大词典
think piece(thinkpieces)
1.
N-COUNT（可数名词）
A think piece is an article in a newspaper or magazine that discusses a particular subject in a serious and thoughtful way. (报纸、杂志上的)评论文章; 思想性文章