| 释义 | 
             
                previous menstrual period
                
            月经的yuè jīng de 
 menstrual一月一次的yī yuè yī cì de 
 menstrual历次lì cì 
 all previous基期jī qī 
 base period结算期jié suàn qī 
 accounting period; settlement period; calculation period每月的měi yuè de 
 mensal, menstrual安全期ān quán qī 
 safe period寒武纪hán wǔ jì 
 cambrian period宽限期kuān xiàn qī 
 grace period旺汛wàng xùn 
 best fishing period帧周期zhēn zhōu qī 
 frame period白垩纪bái è jì 
 the Cretaceous period聘期pìn qī 
 employment period; employment term旬xún 
 a period of ten days经痛jīng tòng 
 algomenorrhea; menorrhalgia; menstrual colic过急的guò jí de 
 previous夙诺sù nuò 
 previous promise围产期wéi chǎn qī 
 perinatal stage; perinatal period痛经tòng jīng 
 dysmenorrhea; menstrual colic; painful menstruation繁殖期fán zhí qī 
 idiophase; reproduction period; breeding season前一行qián yī háng 
 previous row前一列qián yī liè 
 previous column上代shàng dài 
 the previous generation学时xué shí 
 period隔夜gé yè 
 of the previous night
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