Earth is the only planet we know of that has life.请分析一下此句话的句型结构,并_英语解答

Earth is the only planet we know of that has life.
请分析一下此句话的句型结构,并翻译一下此句话,并说明一下that在此做什么成分,

人气：361 ℃　时间：2020-04-22 00:45:21

解答

Earth is the only planet we know of that has life
两个定语从句
(that) we know of我们了解的
that has life
两个都修饰the only planet请翻译一下此句话，谢谢。还在吗,请帮我一下.