There will come a day when he will become a well-known scientist.

将来总有那么一天，他将成为一位著名的科学家。

youdao

There will come a day when people of the world live a happy life under the sun of socialism.

全世界人民正在社会从义阴光上过幸运生活的一天是会到来的。

youdao

There will come a day when you know what you want to write about, and then you will write a novel.

有一天你会知道你想写什么，你就去写小说吧。

youdao

There will come a day, he promises, when his people no longer have need of their leader.

ECONOMIST: The curious case of the Bulgarian medics

Finally, down the road, Wi-Fi will likely have to speed up again--as there will come a day when 54 megabits per second simply isn't fast enough.

FORBES: The Near Future Of Wi-Fi

There will likely come a day when gamers have all finally grown up and start caring enough to demand all of these things.

FORBES: We Don't Need a Video Game Oscars, Yet