人们会难以集中注意力，而且记忆力下降。

It's harder to pay attention, and memory is affected.

youdao

下一间屋里的镜子就更让人难以集中精神了。

Even harder to focus on were the mirrors in the next room.

youdao

判断力不足，难以集中精神，且不能做决策。

Poor judgment skills, poor concentration, and inability to make decisions.

youdao

They'll say, I usually play for more money and it's hard to concentrate or I'm just screwing around.

他们会说，我玩扑克常常是为了赢更多的钱,但是却难以集中注意力,或者我只是随便玩玩罢了。

耶鲁公开课 - 金融市场课程节选

It's growing harder and harder to concentrate.

我愈发难以集中精神。

耶鲁公开课 - 死亡课程节选