"历经千险"的英文表达为"to go through thick and thin"，这是一个习惯用语，意思是经历艰辛的岁月，勇闯过难关。这个习惯用语可能源于古英语中的"þuruh þiccne þunne"，意思是"通过肥胖的和瘦的"，后来逐渐变成了现在的"to go through thick and thin"。

下面是一些使用"to go through thick and thin"的例句：

We've been through thick and thin together. 我们一起经历了艰辛和轻松。
They've gone through thick and thin to get where they are today. 他们经历了艰辛才走到今天的位置。
He's always been there for me, through thick and thin. 他总是在我身边，陪我度过艰辛的岁月。