In principle there is nothing that a human can do that a machine might not be able to do one day.
原则上，总会有一天，凡是人能做的事，机器就能做。
《牛津词典》
2
When Jean was at home all day, she was able to clean the house, go grocery shopping, wash the clothes, take care of the children and cook 2 or 3 meals each day.
当珍整天在家的时候，她能够打扫屋子、去杂货店买东西、洗衣服、照顾孩子、每天做两到三顿饭。
3
Soldiers were expected to be able to travel thirty kilometers per day, in full pack.