Máfán nǐ ɡuān yíxià mén hǎomɑ？

麻烦你关一下门好吗？

Could I trouble you to shut the door?

Notes:

麻烦(máfán): to trouble

你(nǐ): you

关(ɡuān): to close

一下(yíxià): indicates the duration of an action should be very short

门(mén): door

好吗(hàoma): ok?

Example:

A：麻烦你关一下门好吗？

     Máfán nǐ ɡuān yíxià mén hǎomɑ？

     Could I trouble you to shut the door?

B：好的.

     Hǎode.

     OK.