We know ideas each other

We know ideas each other we know each other we h( ) know each other where can we exchange ideas with each other? We each know what the other thinks we did not know each other before We even don't know each other和We don't even know each other Originally ,we get to know each other,know each other,love e we know each other,but we don't know_____(each other)telepho We all love each other, but do not know each other will stay when will we get to know each other well? Some years later ,could we still know other each