rathadj.较普早期的；早熟的=rathe.n.(古代爱尔兰酋长所居住的) 古堡ratn.变节者；鼠；卑鄙的人v.捕鼠；背叛；偷窃rat-tail magenta长尾蛆Ratsifandriamanana拉齐凡德里亚马纳纳Rattus nativitatusn.圣诞岛家鼠Rattus hoogerwerfin.苏门答腊家鼠rating of exchange系数rat-bite disease[医] 鼠咬热rat-race circuit环形波导电路Rat on one's debts[电] 看radiophoto无线电照相rat growth hormone鼠生长激素ratoon-sugarcane宿根甘蔗