要确保每天的钙摄入量。Be sure you get your daily quota of calcium.钙可能有助于预防结肠癌。Calcium may aid in the prevention of colon cancer.奶制品富含钙与蛋白质。Milk products are an excellent source of calcium and protein....
热力学是很难教的一门课。Thermodynamics is a hard course to teach.学券会增加不平等,因为最难教的孩子将会被甩在后面.Vouchers would increase inequality because children who are hardest to teach would be left behind....
6小时50分进入低囊胚期.It enter the late blastula stage in 6 h 50 min.这些囊胚细胞, 称卵裂球, 每个细胞都有一套二倍体染色体组.The cells of the blastula , called blastomeres, also each receive a full diploid set of chromosomes.桑椹胚形成于''.'囊...
那位助产护士给她妹妹接生.The midwife delivered her sister.俺 ---- 俺 ---- 思嘉小姐, 俺一点也不懂接生的事.Ah -- Ah -- Miss Scarlett, Ah doan know nuthin'' bout bringin'babies.对于接生的事她可一窃不通.She knew less than nothing of midwifery....