单词	retention ratio
释义	retention ratio 保留比例
随便看	aircraft radio receiver aircraft radio set aircraft radio sight aircraft radio station aircraft radio station certificate aircraft radiotelegraphy station aircraft radio transmitter aircraft radome aircraft range aircraft reactor experiment aircraft reactor experiment (are) aircraft receiver aircraft refueling boat aircraft refueller aircraft refuelling aircraft refuelling area aircraft repair aircraft repair ship aircraft report aircraft rescue boat aircraft-rescue vessel aircraft rescue vessel aircraft return aircraft rocket aircraft rocket launcher 121414354 121415254 1214153 121415325 121415334 121415411 121415434 121415512 1214155*21 121425 攘臂攘袂扼腕攘袖攘诟攘除攙攛攝攢攢