通常来说,“and前后连接两个相同功能的词时,前面不加逗号;而连接两个独立的句子时,前面有逗号隔开。第二:还有就是and在连接两个不定式是后一个不定式是否要省略to 这是肯定的对的,只是不常这么用而已.
不加逗号的情况:and连接两个以上的单词、词组或子句;连接两个相同的单词或短语,以强调某事物的程度、暗示某事继不能把。一般都是在and前面加都好的。I'm fine,and y?
最后一个形容词之前可以and 与逗号同时出现,否则其他情况两个不能同时用于一个形容词之前如果一个主语后跟随两个分句,当连词是but时,连词前往往要加逗号;当连词是and时,连词前一般不需要加逗号。I have heard the arguments, but am still unconvinced. He has had sev
正确:The cultured cells were examined to assessgrowth and morphology, as well as bacterial contamination. 另外,as well as结构后面如果还有内容的话,其5.7.2 Syndetic, asyndetic, and polysyndetic coordination We distinguish between syndetic coordination