学完这些，美国朋友会认为你很厉害！
Hey, how are you doing?
嗨你好吗？
Yo what's up

guys ！
嗨 怎么了伙计！
What's new? What’ going on?
嗨 有什么新鲜事吗？
Oh, just the usual.
啊哈，和往常一样！
What have you been up to?
最近忙什么呢？
How have you been?
你最近怎么样?
So long!
再见！
Have fun!
玩得开心！
what's up！
什么事！