Hey,
In English, this means that with a sampler, you can record a sound, like someone burping, and 'play' the burping sound with a keyboard. The best example I can think of is in the movie 'Ferris Beuller's Day Off' where Ferris has an old Ensoniq keyboard playing the sounds of him coughing and moaning when his parent's open the door to his bedroom.
What you would do with it for making music is recording something like a drum loop or musical phrase, and you can use something called a sequencer to play those sounds back, one after the other, so that they all come together and form a song.
A sampler is probably the single most important musical instrument for making hip hop music because a lot of it is based on sounds that come from other sources, like old funk and soul records.
Take care,
Nick