According to a recent survey, the majority of doctors believed their incomes did not match how hard they worked.

根据最近的一项调查，大多数医生认为他们的收入与他们的辛勤工作不相匹配。

Do you know how hard she works?

你知道她多么努力工作吗？

How hard it was for him to complete the task.

他好不容易才完成了任务。

No matter how hard it is, we must keep going.

不管多难，我们都要继续加油。

This is an instance of how hard work pays off.

这是一个努力工作如何得到回报的实例。

No matter how hard it gets, you must keep going.

无论多么困难，你都要坚持下去。

The roughness of his hands showed how hard he worked.

他手上的粗糙显示了他工作的辛苦。

No matter how hard he pulled, the rock wouldn't budge.

无论他怎么用力拉，那块石头都不动。

No matter how hard he tries, the result is the same.

不论他多么努力，结果都一样。

She told me, no matter how hard it is, don't give up.

她告诉我，无论多么艰难，都要不放弃。