One day a young man was standing in a crowded place, shouting that he had the most beautiful heart in the world.

一天，一个年轻人站在一个拥挤的地方，大声说他有一颗世界上最美丽的心。

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One day, the farmer's friend gave him a young apple tree and told him to take it home and plant it.

一天，农夫的朋友给了他一棵小苹果树，并告诉他把它带回家种植。

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One day, two young boys accepted his challenge.

一天，两个小男孩接受了他的挑战。

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One soldier told of guarding the president's house on a day when Lincoln was sitting on the porch with his young son Tad.

VOA: special.2010.05.10

One day, the king discovered the relationship between his daughter and the young man.

VOA: special.2009.04.18

Then one day,I met a young man, who lived in the apartment above mine.

VOA: special.2009.07.25

I'm in charge of raising a young woman one day, to be a mother and hopefully a wife.

CNN: T-Boz brings reality to TV

Vieira is an ambassador for Western Union's new PASS initiative, turning every pass in this season's UEFA Europa League into funding for one day's education for young people around the world.

CNN: October 10, 2012 -- Updated 2153 GMT (0553 HKT)

He predicts, apparently seriously, that every young person one day will be entitled automatically to change his or her name on reaching adulthood in order to disown youthful hijinks stored on their friends' social media sites.

WSJ: Holman W. Jenkins Jr.: Google and the Search for the Future