n.腕关节（名词wrist的复数形式）
Screens are tiny and eye-straining, and keyboards injure fingers and wrists. 屏幕使眼睛疲劳，而且键盘会使手指和腕关节受到伤害。
If you don't you could damage your eyes and develop a problem called Carpal Tunnel Syndrome in your wrists. 不这样的话你的眼睛就会受到损害，而且手腕可能患上腕关节综合症。
