由一个连词连接的三个或三个以上的一组词语中,除最后一个外,其余的每个词语后都需用逗号分开
逗号(,comma)
1. 用于一系列并列的内容之间,如:
I will be travelling to Singapore, Malaysia and Thailand.
3. 用于连接两个并列句,如:
Work hard, and you’ll be likely to achieve success.
4. 用于连接含有状语从句的复合句中,如:
When I got home from work, it was almost midnight.
5. 用于以副词、介词短语、名词短语放在句首作状语的句子中,如:
Fortunately, they survived the earthquake.
In the end, we won the first prize in the speech competition.
6. 用于直接引语中,如:
Tom shouted, “Would you please shut up?"
“I’m tired to death,” Charlie said.
7. 用于反意疑问句中,如:
You don’t trust me, do you?
Let’s go shopping together, shall we?
8. 用于含有同位语的句子中,如:
I am Li Hua, president of the school students’ union.
Beijing, the capital of China, is the center of politics, economy and culture.