好好保存东西用英文怎么说

好好保存东西的英文表达是 "take good care of something"。这个短语的来源可能是人们常常在做事情时会用到这个短语，比如保管好某个东西。例句：

Please take good care of your belongings while travepng. 请在旅行中好好保管好你的物品。
I will take good care of your plant while you are away. 我会在你不在时好好照顾你的植物。
You need to take good care of your health. 你需要好好照顾自己的健康。