第1个回答 2011-11-20
race -radar - radiation - radio -raid - railroad - rain - raise - rare - rate - reach -react -read - ready -real - realistic - reason - reasonable -rebel - receive - recent -recession -recognize - record - recover -red - reduce - reform - refugee - refuse - regret - reject -relation - release - religion - remain -remains - remember - remove - repair - repeat - report -represent -