(má fán nǐ) "Can I trouble you to..." / "Would you please..."
This structure is used when making a polite request of another person. It's quite similar to the usage of "请"=please. However, it's a little more formal, and is specifically used when asking others for help.
NOTE: this structure is different from the adjective "麻烦"=troublesome
麻烦您把护照给我看看 = Would you please let me see your passport