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- 请集中考虑以下问题。
Please focus your minds on the following problem.
- 我累了就无法集中精力工作。
I can't concentrate on my work when I'm tired.
- 吵闹声不绝于耳，我很难保持精神集中。
I found it hard to keep my concentration with such a noise going on.
- 紧张和疲劳常使人精神不集中。
Stress and tiredness often result in a lack of concentration.
- 他集中心思在新计划上。
He focused his mind on his new plan.
- 改用煤气集中供暖将节省大笔开支。
Conversion to gas central heating will save you a lot of money.
- 我试图使思想集中起来，但是我太激动了。
I tried to collect my thoughts but I was too excited.
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