孩子们应该减少玩电子游戏的时间使得他们能更有效地集中精力于学习。
Children should reduce the time they spend on PC games so that they could concentrate on the study more effectively.
一旦沉迷于玩电子游戏，就很难集中精力学习了。
Once you get lost in playing computer games you can hardly concentrate on your study.
吵闹声不绝于耳，我无法集中精力(于学习)。
I can't concentrate (on my studies) with that noise going on.
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