His doubts spring from too much experience of failure.

他的疑虑来源于他多次失败的经历。

youdao

Summarize experience of failure, not simple things make you do it.

不总结失败的经验，简单的事情也会让你办砸。

youdao

When seeking to build a winning car, even the experience of failure, he says, is "critical".

他表示，当你试图制造造一辆可以获胜的汽车时，即便是失败的经验，也是“至关重要的”。

youdao

But sometimes, people have to experience the result of failure to come to their senses.

FORBES: Move up http://i.forbesimg.com t Move down

Brzezinski's book was born from personal experience and her admitted failure of not cutting herself a fair deal and getting the money she deserved.

CNN: Working women, know your value

Being ignored is minor compared to the hostility and emotional abuse many other stepmothers experience, but my sense of failure grew each time I tried to grow closer to my stepdaughter and was rebuffed.

CNN: The plight of stepmoms on Mother's Day