first menstrual period 中文意思是什麼

first menstrual period 解釋
第一次月經期
  • first : adj 1 最初的,最早的。2 最上等的,第一流的。3 基本的,概要的。4 高音(調)的。n 1 最初,第一;第...
  • menstrual : adj. 1. 【天文學】每月(一回)的。2. 月經的。
  • period : n 1 時代;期;時期;期間;階段。2 〈the period〉現代,當代。3 周期;【地質學;地理學】紀。4 終結...
  1. The first menstrual period, usually occurring during puberty

    月經初期第一次月經期,通常發生於青春期
  2. Previous studies looking at this topic may have failed to identify a link because they focused on women at least 6 weeks after their last menstrual period. by contrast, most miscarriages occur earlier in pregnancy, usually within three weeks of conception. in the study reported in the proceedings of the national academy of sciences early edition, levels of the stress hormone cortisol levels were measured in the urine during the first 3 weeks of 22 pregnancies

    此前就這一課題進行的多次研究之所以未能成功確認兩者之間的聯系,其原因或許在於研究人員總是將注意力放在那些停經已達6周之久的孕婦身上,但大部分流產都發生在妊娠的最初階段,通常是在懷孕開始后的3周內。
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