Last 50 years science and technology took great leaps , internet , mobiles made us more connected .
In the last 50 years , science and technology took great leaps ; the internet and mobiles made us more connected .
In the last 50 years , science and technology took great leaps ; the internet and mobiles made us more connected .
文法上の間違いを取り除く: Last 50 years science and technology took great leaps , internet , mobiles made us more connected . 出力: