mr先生英文怎么读

The pronunciation of "mr先生" in English is "mister."

When addressing a man named Mr. 先生， it is common to use the term "mister" instead of his full name. This is considered a polite and respectful way to address someone who has given their last name as Mr. 先生.

If you are unsure about how to pronounce a specific name, you can use an online pronunciation tool or ask a native English speaker for help.

I hope that helps! Let me know if you have any other questions.