It's like having a flaw in a piece of material - the longer you leave it, the weaker it gets.
这就像一块料子上有瑕疵一样—你把它放得越久，它就变得越不结实。
《柯林斯英汉双解大词典》
2
It involves a stone, a piece of lapis lazuli that has a kind of a flaw in it, which is like a "water-course," and where one can imagine a pilgrim climbing toward increased enlightenment.
提到了一块石头，一块有瑕疵的青金石，就像河道“，我们可以想象，一个朝圣者慢慢靠近神启。”
3
A piece of merchandise having a minor flaw that does not impair its use, usually sold at a discount.