He returned to his home village for 18 months, during which time he did most of the thinking that led to his later work on gravitation and optics.
He returned to his home village for 18 months, during which time he did most of the thinking that led to his later work on gravitation and optics.
他回到家乡呆了18个月，他以后在万有引力与光学方面的研究大部分是在这个时期蕴酿构思完成的。