trimester

trimester は9ヶ月の妊娠を三ヶ月単位に分けたもの、したがって妊娠初期の三ヶ月 first trimester、妊娠中期の三ヶ月 second trimester 、妊娠後期の三ヶ月 third trimester に分類できる。0;27 the hospital director of the San Antonio Hospital which discovered the fetus said it appeared to have survived into the third trimester. この92歳の女性の腹部から成長した胎児の遺体を発見した病院の院長は胎児は妊娠後期の三ヶ月まで女性の腹部で成長したのだろうと語った。

Grandma carried foetus for 50 years
https://www.youtube.com/watch?v=zIMmhD8DSpA  1;17 our finger print patterns are formed in the womb. the skin on our hands grows out of the same fetal layer as our brains right at the same time as the major organs like the heart and lungs are developing in the first trimester.
Heart Line or Life Line: Can You Tell?
https://www.youtube.com/watch?v=W9xZ2tH8ArE  0:40 early in pregnancy that first and second trimester is where the fetal brain is developing. that's the period of time where the brain is most susceptible to insults.
Maternal Diabetes Linked to Autism Risk
https://www.youtube.com/watch?v=RQk16ZjdLpo  1:08 in their third trimester of pregrancy
CNN's Dr. Gupta: Common household product threat to
https://www.youtube.com/watch?v=BugY-WNIiKQ  1:28 first trimester, you can keep lifting those weights. second trimester, you need to start scaling back. 最初の三ヶ月は普通にパーベルを持ち上げていいけど、四ヶ月目からは徐々に重さを減らしていきます。
Is Cross-Fit Safe For Pregnant Women?

練習問題解答
a-1889 second trimester
a-4162 second trimester
a-5667 the first trimester