这个朋友的年纪比我小，当时是在一个英语群里认识的。
My friend is younger than me. We knew each other through an English QQ Group.
如果你来一个英语群，会认识很多英语爱好者。
If you were in that English group, you would have known lots of English fans.
如果你来一个英语群，会认识很多英语爱好者。
If you were in that English group, you would have known lots of English fans.
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