因此，通过挺直腰板，挺直肩膀来显示你对自己的信任是很重要的。

Therefore, it's important to show trust in yourself by standing up tall and putting your shoulders back.

youdao

缺乏对自己的信任。

Lack of self reliance.

youdao

在今日美国，使人们失去胜利的第一个问题是他们缺乏对自己的信任。

The number one problem that keeps people from winning in the United States today is lack of belief in themselves.

youdao