Do you have firsthand knowledge that the Earth is round (a sphere)?

你真的有第一手信息来说明地球是圆的(或一个球体)吗？

youdao

You now need to gather more in-depth information. Your best source of this information are people who have firsthand knowledge of the occupations in which you are interested.

你需要收集更进一步的信息，而你的信息源最好就是在这方面有工作经验的前辈了。

youdao

(...) He says he thinks that it is good that the Obama administration is seeking to get firsthand knowledge of the effects that the war against terrorism is causing the U.S.ally.

VOA: standard.2009.10.30

He's been talking with a senior U.S. military official with firsthand knowledge of operations in Somalia.

NPR: Somalia Raids Were Long in the Making

So often in life people can only appreciate what they have firsthand knowledge of.

FORBES: Every Person Matters in a Company, and There is No Such Thing as an Insignificant Position

There were no apparent constraints Monday, the law enforcement source with firsthand knowledge of the investigation said.

CNN: SHARE THIS