A 25-year-old Massachusetts Institute of Technology student has invented a revolutionary alarm clock 'clocky,' in this undated photo, that falls to the floor and rolls away on the first push of the snooze button. To turn it off, a person must get out of bed and find it. The clock features two rubber wheels and is covered in thick, 1970s-style shag carpet and other material to cushion it when it tumbles to the floor. FOR EDITORIAL USE ONLY NO SALES REUTERS/MIT Media Lab/Handout

词汇：

Massachusetts n.麻萨诸塞州

institute n.学会, 学院

revolutionary adj.革命的

undated adj.未标日期的

snooze n.打盹儿, 瞌睡

shag n.粗烟丝, 粗毛

cushion n.垫子, 软垫

tumble n.跌倒, 摔跤, 翻斤斗