1) We know each other very well.
我们彼此熟识。
2) know each other very well
彼此很熟识
3) So we can chat each other.
我们彼此聊聊.
4) They do not mate with each other.
它们彼此不交配。
5) They speak English to each other.
他们彼此讲英语。
6) They don't get on at all well together/with one another.
他们彼此极不和.
补充资料：我们
1.代词。称包括自己在内的若干人。
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