或者如果你已经知道他们是谁了，你可以说：你好，史密斯女士，你好吗？

Or, if you know them already, you might say: Hello Mrs Smith, how are you?

youdao

你可以说，“你好吗？”

You can say, "Hello!"

youdao

你可以说，“你好吗？”

You can say, "Hello!"

youdao