.i> () / ( , .i>);
to ratchet downb> (; ), , ; costs have been ratcheted down by as much as 50% since 1999 1999 , 50%-i> ;
to ratchet upb> (; ), , ; raising the minimum wage would ratchet up real incomes in general ; Hitchcock ratchets up the tension once again i>; electricity prices will ratchet up this year / .