A:Can I help you?B:Yes,please.I want a shirt.A:What color do you want?B:Blue.A:Here you are.B:How much is it?A:It's 20 dollars.B:Thank you .A:You're welcome能为你效劳吗?乙：是的,请.我想要一件衬衫.你喜...虽然已经不用了，但还是谢谢了。