1. Good morning / afternoon / evening. 早上好/中午好/晚上好2. Hello (name), how are you嗨(人名)，你好吗 3. Good day Sir / Madam (very formal) 先生/太太日安(非常正式)4.It was a pleasure seeing you. 见到你真高兴。

5.It was a pleasure seeing you. 见到你真高兴。