He studied harder than ever.

他学习比以前努力了。

youdao

It was raining harder than ever.

当时下着前所未有的大雨。

《牛津词典》

They began to work harder than ever and more joyfully.

他们开始比以前更努力地、更快乐地工作。

youdao

It wasn't good enough today, so after the season I'm going to go home and rest a little bit and I'm going to work harder than ever,".

VOA: standard.2009.08.21

There are far too many firms yet finding talented managers with integrity is harder than ever.

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In the face of this data, denying a continued recovery will be harder than ever.

FORBES: Economic Pessimists In Denial

He drove the fighter to train harder than ever by running ahead of the pack.

WSJ: Manny Pacquiao and His Best Friend: His Dog Pacman