昨天報紙報導了一款新型跑步機, 除了正常的跑步功能外, 還連接電腦, 邊跑邊玩電腦. 跑步時身體上上下下, 眼睛怎樣對準電腦熒幕呢?
By miuching (middle-school student) on 2012-03-08 Answers 1 Views 168
By teddy chan (graduate) on 2012-03-09
眼球是曉動的
