Quotation refers to:
1. A group of words taken from a text or speech and repeated by someone other than the original author or speaker.
2. A formal statement setting out the estimated cost for a particular job or service.
3. The act of quoting or being quoted in financial markets.
4. In printing, the same as "quote marks" - punctuation marks used to indicate direct speech or a quotation.
哎呦喂，quotation这词儿可有意思了，咱们掰开了揉碎了说：
1. 最常用的意思就是引用，把别人说的话儿或者写的字儿原封不动搬过来用。比如写论文时候"某某说"后面跟的那段儿话，那就是quotation。
2. 做生意的小伙伴注意啦！在商务场合，quotation就是报价单的意思。比如您找装修公司，人家给您列个清单说"刷墙5000，铺地板8000"，这就是quotation。
3. 炒股的老铁们看过来！金融圈儿里quotation指的是行情报价，就是股票那个实时价格。您看盘时候那些数字刷刷变，那就是quotation在动。
4. 最后这个冷知识：在印刷排版里，quotation就是咱们说的引号。英文里分单引号(' ')和双引号(" ")，跟中文的"引号"一个意思。
补充个小贴士：quotation和citation经常傻傻分不清楚？简单说quotation是原话照搬，citation是引用出处。记住了没？