How's it going?
再给你补充点详细的吧：【百度百科里的】
这是英语中常用的一句语言，表示问候对方。
可翻译为：最近怎么样？ 事情进展得顺利吗？事情进行得怎么样？过得好吗？事情进展的怎样？
常见用法
How's it going? 情况怎么样?
How's everything? 情况如何？ 进展如何？
How's everything going with you? 你一切情况如何？
"be going" 是习惯用法，亦可作"be going on"; 有“生活中正在进展的事情”之意。
回答：It's going pretty well. / All goes well. / Everything goes well. 一切顺利。
例句
With Alan again? How's it going? 又是
亚伦?进展得如何?
How's it going? I hope that grandpa is well now. 近来身体怎么样？我希望爷爷身体健康。 How's it going to look? A Harvard law professor married to a lawyer who got fired from her first job .
别人会怎么看呢? 一位
哈佛大学的法律教授娶了一个刚参加工作就被开除的律师。
用法补充说明
英国、
澳洲较流行 "How is it going?" 或 "How are you going?"；
美国则多喜欢说 "How are you doing?"
"How is it going?" 相较所指范围略广，可表示对除对话双方以外相关事情的询问。
不过如今在日常生活使用中这几种用法已经基本没有什么的差别，总的来说就是表示问候 "你好吗?"，等同于"How are you?"
可替代的同类用语：What's up? What's going on? How's everything going (on)? How have you been? What's happening? What happened? How are you doing? How are you?
其回答也较口语化，一般可以说：I'm good, thanks. You? / I'm doing good. / Pretty good. / Not bad. 例如：Hey! Jane, how is it going? 嘿！简，你好吗？ Pretty good, thanks! How about you there? 很好啊，谢咯！你怎么样？
参考资料：http://baike.baidu.com/view/7152954.htm