复合不定代词是英语语法中的重要概念，用于指代不特定的人或物。常见的复合不定代词包括"somebody/someone"、"anybody/anyone"、"everybody/everyone"、"nobody/no one"、"something"、"anything"和"everything"。熟练掌握这些代词的用法可以帮助更好地理解英语语法和表达自己。
somebody / someone
- Somebody is knocking at the door. （有人在敲门。）
- Someone is calling you on the phone. （有人在给你打电话。）
anybody / anyone
- Anybody can join this club. （任何人都可以加入这个俱乐部。）
- Anyone can learn to play the guitar. （任何人都可以学会弹吉他。）
everybody / everyone
- Everybody loves a good story. （每个人都喜欢一个好故事。）
- Everyone is welcome to come to the party. （每个人都欢迎来参加聚会。）
nobody / no one
- Nobody knows the answer to that question. （没有人知道那个问题的答案。）
- No one wants to be sick. （没有人想生病。）
something
- She has something to show you. （她有东西要给你看。）
- We need to buy something for dinner tonight. （我们需要买点东西今晚吃。）
anything
- You can ask me anything you want. （你想问什么都可以问我。）
- I don't want anything to do with that person. （我不想和那个人扯上关系。）
everything
- He told me everything about his trip to Japan. （他告诉我他去日本的一切。）
- She put everything into her work. （她把一切都投入到了工作中。）
