We could not concentrate on the lesson because the room was noisy.
屋里太吵，我们无法全神贯注地听课。
You can't concentrate on anything but that because it hurts that bad.
除了疼痛，你不能专注于任何其他事情，因为疼痛是那么地难忍。
He decided to concentrate on English because he just failed the exam.
他决心专攻英语因为他刚刚考试不及格。
I like it because it makes me concentrate much more on my work.
我喜欢用钢笔，它能使我集中思想做好我的作业。
A man spent 20 minutes starring at an orange juice box because it said: "concentrate".
一个人盯着一个橘子汁看了20分钟，因为上面写着“注意力要集中”（浓缩汁）。
I often worked till midnight these days. I like it, because I could concentrate more.
这两天都加班到深夜，我也喜欢在晚上工作这样更能集中精力。
He could not concentrate because the room was noisy.
他不能集中思想，因为房里太吵。
You can take some notes because that can help you concentrate on your lessons.
你可以带一些笔记，因为这能帮助你专注于你的功课。
It's another race to concentrate on and it has a unique challenge because of the track itself.
要关注的是这是一场比赛，而这场比赛非常具有挑战性是因为这条赛道。
It's another race to concentrate on and it has a unique challenge because of the track itself.
要关注的是这是一场比赛，而这场比赛非常具有挑战性是因为这条赛道。
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