Mary made a lot of changes in her test paper after she finished. She should have let well enough alone, because she made several new mistakes.

玛丽做完试卷后作了很多修改。她不该弄巧成拙，反而又增加了几个新的错误。

"I understand, though," Mr. Letterblair continued, "that she attaches no importance to the money. Therefore, as the family say, why not let well enough alone?"

“可是我知道，”莱特·布赖接下去说，“她对钱的问题并不重视。所以，就像她的家人所说的，干吗不听其自然呢？”

Everyone knows how Mythical National Championships are the burr under my saddle, and I just can't let well enough alone, especially when I have a point to make.

每个人都知道如何神话般的全国锦标赛是毛刺根据我的马鞍，我只是不能让做得不够好，就有特别是当我有一个意见。

Anxiety born in human genes is well enough to give people a hard time, let alone the lifelong anxiety caused by death. It is said that this innate anxiety disorder doesnot only affect humans.

就不用说死亡能让我们一生焦虑了，人类基因中自身携带的焦虑就足以让人们焦头烂额了，这种与生俱来的焦虑症候据说并不是人类的专利。