StephenHawking,thefamous1)astrophysicist,saysweneedtospreadintoouterspace.Ifwedon't,hesays,itwillbedifficultfortheworldto“2)avoiddisasterinthenexthundredyears,letalonethenextthousandormillion.”HawkinghasLouGehrig'sdisease.Hehastospeakwiththeaidofa3)computersynthesizedvoice.
疯狂英语：初中版
2017年5期
