[AS3] Play sound on click of a button

I want to play a sound on click of a button. I can do this in AS 2.0

//Action Script 2.0

 
snd=new Sound();
snd.attachSound("try");
snd.start();

//Action Script 3.0

 
var snd:Sound = new Sound();
//what will come here, as .attachSound() is not there in AS 3.0
snd.play();

Thanks…