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Unit 9 When was it invented? 文化背景知识介绍 广东省教育厅教研室 There are many interesting inventions in the US. Some very unique inventions are described below. · Jet Propulsion Golf Club (1999): Used to hit the golf ball faster. · Milk Gun (1999): Used to feed a baby; you pull the trigger of the gun. · Eartquake House (1995): A round house that can roll when there is an earthquake. · Brain Buzzer (1998): When you feel sleepy, you bite on a vibrating stick. · Dad Saddle (2002): A Dad wears a belt with stirrups. A child put his feet into the stirrups while holding on to Dad's neck. (责任编辑：admin) |