He is a favourite son.

他是一个宠儿。

But this year other presidential hopefuls did not spend much time in Iowa because Senator Harkin from Iowa was a favourite son candidate.

可是，今年其他州的候选人并没有在爱奥华州花很多时间进行竞选活动，因为哈金参议员就是来自爱奥华州的，他就是该州的宠儿。

A favourite nephew, niece, or son perhaps?

最喜欢的侄子，侄女，或者也许儿子？

On his first day home, his father organized a celebration in the village for his favourite son, who had brought honour to the family by going all the way to America.

回家的第一天，他父亲为最钟爱的小儿子在村里庆祝了一场，因为他去美国为家里争了光。