Without my textbooks, I had to read and do exercises on a computer screen, which hurt my eyes.
没有课本，我不得不在电脑屏幕上阅读、做练习，这伤害了我的眼睛。
They were then putthrough a series of mental exercises on a computer.
接着，他们在电脑上进行了一系列智力练习。
They were then put through a series of mental exercises on a computer.
接着，他们在电脑上进行了一系列智力练习。
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