His newfound ability to concentrate is largely thanks to a drug called methylphenidate,他現在能夠集中注意力多虧了這種叫哌醋甲酯的藥

thanks to由于；歸功于

Thanks to I had tied then the safety belt.

幸虧我當時系上了安全帶。

Thanks to your timely intervention.

多虧你及時調停。

he is able to sit quietly,be able to focus on things like his homework他可以安靜地坐著可以集中精力在他的作業上

able to能做 ...

I may be able to help you in some way.

我也許可以從某個方面去幫助你。

He was able to cast off such an uninteresting task.

他終于擺脫了這么一項乏味的工作。

focus on集中在

Our policy is to focus on developing these areas.

我們的政策是著眼于把這些地區發展起來。

The noise made it hard for me to focus on work.

噪音讓我無法集中注意力工作。