Arrange the chair, desk, and computer screen to avoid neck, wrist, and head pain.
摆放好桌椅和电脑屏幕以免你的脖子，手腕和头疼痛。
I have been continuing to test him with the letters on paper and computer screen.
我一直在用电脑屏幕和纸张上的字母测试他的视力。
I have been continuing to test him with the letters on paper and computer screen.
我一直在用电脑屏幕和纸张上的字母测试他的视力。
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