Would you mind my sitting here ,ma'am 您介意我坐这吗,女士?
Please take a seat .请坐.
Would you like to have cup of coffee 您想来杯咖啡吗?
After you ,ma'am .您先请,女士.
Could you do me a favor to ...你能不能我帮个忙...
Thank you .You're welcome .不用谢.
等等很多.楼下的补充...
英语问题哪些 单词 是用于比较 客气的场合 或者 哪些单词或句子 有客气的意思~~!