礼貌用语是日常交流中非常重要的部分，它们体现了尊重和友好。以下是一些常见的礼貌用语单词和短语：
问候语:
Hello!
Hi!
Good morning!
Good afternoon!
Good evening!
Good night!
表达感谢:
Thank you!
You are welcome!
All right!
表达道歉:
Excuse me!
I'm sorry.
That's OK.
表达请求:
Can I help you？
May I...？
Could you give me a moment？
表达邀请:
Please come in.
Sit down, please.
Have some tea, please.
表达告别:
Goodbye!
See you!
Byebye!
其他礼貌表达:
Long time no see!
How are you？
Nice to meet you.
Glad to meet you.
I would like... （代替 I want... 以显示更礼貌）
使用这些礼貌用语可以帮助您在与他人交流时保持尊重和友好，营造一个愉快的社交环境