We're here in,uh,May,was it May 20th today? 为什麽 ,uh,May, 要逗号? 2. 逗号 (Comma, “ , ”) A.逗号用於分隔一系列的简单内容，如：Total nitrogen, nitrate and nitrite had been tested. B.逗号用於分隔名词的数个形容词间，如：a small, fancy bike. C.逗号用於连接两个较长的独立句子，且句子的主语不同，如：Species A had strong effects on this ecosystem, and Species B also had certain significant effects. D.逗号用於相关联的子句间，例如：Since he’s your younger brother, please take care of him. E.逗号用於一个较长的修饰句後，如：In the middle of the coldest winter on record, the pipes froze. F.逗号用於直接引用的句子前，如：Mary said, “Let’s go fishing.” 若句中含有间接 引用，则不需要逗号，例如：Mary said we should go fishing. G.逗号用在反问句之前，如：He worked very hard, didn’t he? --

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