Really是一个常见的英语单词，通常用来表示强调或确认某件事情的真实性或重要性。在口语中，really可以被用来表示惊讶、兴奋或者失望的情绪。下面是一些常见的用法和表达方式：

1. Really可以用来表示惊讶或者兴奋的情绪，例如：

- "Really? You got the job? Congratulations!"

- "Did you really see a ghost? That's so scary!"

- "I'm really excited to see the new movie. It looks amazing!"

2. Really可以用来确认某件事情的真实性或者重要性，例如：

- "I really need to finish this project by tomorrow."

- "Do you really think we should invest in that company?"

- "It's really important that we arrive on time for the meeting."

3. Really可以用来表示强调某个词或者短语的重要性，例如：

- "I really love this song. It's my favorite."

- "The food at this restaurant is really delicious."

- "She's really good at playing the piano."

总之，really是一个非常常见的英语单词，可以用来表示惊讶、确认、强调和表达情感等。熟练掌握这个词的用法，可以让我们的英语口语更加自然流畅。