Some people work hard at suppressing their emotions.

有些人努力压抑自己的情绪。

Binh worked hard at developing her skills.

董丹平努力提高自己的技能。

Yeah, well, I worked hard at that job.

是吧 我工作很努力的。

I've worked hard at this relationship.

我在这段感情中很努力。

We work hard at X to make it safe to fail.

在X公司我们努力 让失败看起来很正常。

He started dancing as a boy and worked hard at it daily.

他幼年时开始跳舞，并且每天练习得非常刻苦。

They want to get ahead, so they work hard at their career.

他们想获得成功，所以他们在职业生涯中努力工作。

I think you have to work hard at whatever you're doing.

我认为你必须努力工作，无论你在做什么。

I'm just going to work harder at being a good wife.

我打算更努力地做个好妻子。

They worked hard at whatever they did, but they had a sense of achievement.

无论做什么，他们都很努力，有一种成就感。