留学生在日常生活中使用的口语应该体现出礼貌、地道和实用性。以下是一些常用的口语表达：
基础问候与寒暄
Hello / Hi
How are you？ / I'm good, thanks. And you？
What's up？ / How's it going？
Nice to meet you!
表达感谢与道歉
Thank you so much for your help!
Thanks a lot!
My apologies.
日常购物与餐厅点餐
How much is this？
Can I have a discount？
I'd like to order... （e.g., a hamburger and a coke, please）
Thank you!
请求与建议
Please （用于请求帮助或建议）
I was wondering if you could give me some advice.
交通相关
Where can I catch a taxi？
Here you are. You can keep the change.
How much extra do I have to pay for that？
Is this the bus that goes by the mall？
飞机上
Can I have a window/aisle seat, please？
I have a connecting flight to... Where's the transfer counter？
I'd like to check in my luggage.
Where can I find a trolley？
Which gate should I go to then？
May I have a blanket and a pillow？ Water/Apple juice/Coke, no ice, please.
Is it possible to change the seat？
其他实用表达
I'm all ears（洗耳恭听，表示对对方的话很感兴趣）
I'm good.（礼貌地回应别人的问候或提议，也可以委婉地拒绝）
这些表达不仅适用于留学生日常生活，还能帮助他们在各种场景下更自信、更自然地交流。建议留学生在出国前多练习这些口语表达，以便在实际使用中更加自如。