I had to work hard for my goals because they played with a lone striker.

为了进球我在场上必须加倍努力，因为他们打单前锋战术。

youdao

I had to work hard to keep my anger in check, and I didn't always succeed.

我必须努力工作才能控制住自己的怒气，但并不总是能够控制得住。

youdao

I was watching some tennis on TV and I knew I had to work hard to come back.

我在电视上看了一些比赛，并且知道我必须努力工作，回到赛场。

youdao

So I had to work very hard.

所以我得很努力地工作。

耐克设计师 - SpeakingMax英语口语达人

I've had to work hard to get back in and I'm just glad I got a nice 80 minutes.

BBC: Christian Lewis-Pratt

But I had to work very hard at it, and there's still complications from it today.

NPR: Confronting Misconceptions About Cancer Prevention

"I've had to work really, really hard on making sure ... not to get emotionally involved, " says Mr. Sclafani.

WSJ: Job Seekers Bend Ears of Advisers, Recruiters