Everyone knows that failure always accompanies us in our life.No matter what we do, none of us can say we will surely succeed, because there is no such thing as plain sailing.

　　每个人都知道失败总是在生活中伴随着我们。不管我们做什么，没有人可以说我们一定会成功，因为没有什么事是一帆风顺的。