1.b> 1) (), , ; , ; to slip and tumble down the stairs ;
2) (.i> down) (), ; , (.i> .i>); the old building came tumbling down ; the price of crude oil was still tumbling ;
3) (), / ; , ;
2.b> , i> () i> (), (); a group of noisy children tumbled out of the school / ; all her things tumbled out of her bag ; thick curls tumbled down over her shoulders ;
to tumble to smth.b> .i> i> () / .