When thinking about ```,you need to```怎么造句?

Be in the moment,rather than rushing through a meal thinking about what you need to do next.When you eat,you should eat.
别在吃饭的时候去想你吃完之后还有什么事情要做,该吃饭的时候就吃饭.
再问： 你好，我提问是用When做主语哈，谢谢了···
再答： When thinking about what to buy and what to bring, you need to keep mind:practical! 当你想自己应该买什么和戴什么的时候，系需要记住：实用！