Go for a walk. It'll give you an appetite.

去散散步，你就有食欲了。

《牛津词典》

She went for a long walk to work up an appetite.

她为了增加食欲散了很长时间的步。

《牛津词典》

He said, "If she would have an appetite like mine to-day, she couldn't help getting nice and fat."

他说：“要是她今天也有我这样的胃口，她一定会变得又健康又丰满的。”

youdao

"If we get to the summer of 2011 and people do not feel that we have made real progress, then I do not think there is an appetite here - or an appetite in the U.S.- to say, 'Well let us have another go and another go.'

VOA: standard.2010.08.04

An ear and an appetite for these sounds of sense is the first qualification of a writer, be it of prose or verse.

这些感性的声音的耳朵和胃口,是作家最基本的素质，不论是写散文还是诗歌。

耶鲁公开课 - 现代诗歌课程节选

And the world's insatiable appetite is depleting the planet's fisheries and using up land and fresh water at an alarming rate.

VOA: standard.2010.06.04

And the Supreme Court has shown an appetite for patent cases recently, after decades of neglect.

FORBES: Cipro "Pay-To-Delay" Case Is Ideal Supreme Court Fodder

And it's not really clear that there's an appetite amongst Congress for that to happen.

NPR: Deciding the Future of Guantanamo

We worked up an appetite, and I pointed out a Chinese restaurant not far from the tower.

NEWYORKER: The Grand Tour