题目内容：

I think the big takeaway is failure and setbacks,far from being uncommon,are in many ways essential.居中的are做什么成分,

优质解答

原句是：I think the big takeaway is failure and setbacks are in many ways essential.
far from being uncommon是插入语,对setbacks作补充说明.在原句中看are,他的成分就很明显了.