回答：difficult hard untoward 难对付的 painful 费力的 棘手的 touchy 棘手的,难办的more than over、 exceed overrun 超过(范围) preponderate over 超过
difficult 与more than的同义词 或近义词
difficult hard untoward 难对付的 painful 费力的 棘手的 touchy 棘手的，难办的more than over、 exceed overrun 超过（范围） preponderate over 超过2013-10-20
difficult --hard 例如it is difficult to do it ,也可以说it is hard to do it .More than --over 例如 He is more than 30 也可以是He is over 302013-10-20
difficult：hard，toughmore than：beyond2013-10-20
