What is a Friend of the Earth?

What is a Friend of the Earth? what is your definition of a friend what is a ture friend like 翻译 what do you think a good friend is l _______下句是：Well,first of all, My dear friend,what a thing is the heart of man!怎么翻译? a friend in word is never a friend of What is a real friend?What is a real friend like?Just tell me in English. What's your best friend?In our life ,we have a lot of friends ,but who or what is your best friend? ...is a friend of +名词?名词所有格? Tom is a best friend of mine. He is a friend of mine.翻译. Mary is a friend of ____(I). mr li is a friend of _ he is a friend of mine A friend of ( ) [he] is from Japan he is a friend of _____(we) What is the name of your best friend? hanging out of my friend--what is the mean?