写作要求：
1). 注意紧扣主题，意思连贯，语言通顺，书写规范。
2). 不得使用真实姓名和学校。
3). 词数不少于60。
As time goes by, there are going to be big changes in our everyday life. For example, when we are hungry, we don't need to cook in a hurry. Just take some pills, and everything will be OK. When we are free, we can go anywhere by spacecra
