I know this from first hand experience.

我从我的亲身体验中了解到了这个事实。

youdao

Often they are people with first-hand experience.

通常，他们是具有直接经验的人。

youdao

Have you offer hand experience of helping other people?

你有过帮助别人的经历吗？

youdao

On the other hand, it is here where that the journey and much of the African American experience begin,".

VOA: standard.2009.07.11

on the one hand, " and "Why are the things that are missing ?" from the experience machine worth having?"

此外还有，“为什么体验机器里没有的东西,“值得拥有“

耶鲁公开课 - 死亡课程节选

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They will be helped by mentors with first hand experience of the damage gangs can do.

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