称呼冷姓氏怎么说英语

To address someone with the surname "Leng" in English, you can use "Mr. Leng" or "Mrs. Leng" if you know their marital status. If you are not sure of their marital status or if you prefer to use a more formal or neutral title, you can use "Mr./Ms. Leng." It is also acceptable to simply use "Leng" without a title.
For example:
"Hello, Mr. Leng. How are you today?"
"Good morning, Mrs. Leng. May I help you with anything?"
"Hi, Mr./Ms. Leng. I'm glad to see you again."
"Hello, Leng. It's nice to meet you."
Note that in English, it is not common to use first names to address people you are not close to or do not know well. It is generally more polite to use a title or surname. However, in some situations, such as in social or informal settings, it may be acceptable to use first names.