逗号用来表示一个句子中的简短停暂。逗号的使用不能大意,因为一个错位的逗号可以改变整句话的原意。例如: James hit Lane, and Edward, then ran away. 詹姆斯打了莱恩和爱德华,然后跑掉了。 James hit Lane, and Edward then ran away.詹姆斯打了莱恩,然后爱德华跑掉了。 同时,当有必要澄清一个意思的时候,应该用逗号。如果随意省略逗号的使用,往往会导致歧义或者误解,例如: This lawyer, said the judge, is a fool. This lawyer said the judge is a fool.