A single archesporium differentiates immediately below the nucellar epidermis, it functions directly the megaspore mother cell.孢原细胞处于珠心表皮之下, 直接起大孢子母细胞的功能....
Ma and I crocheted new quilts.我和妈妈钩织了新床罩。Mom and I crocheted new quilts.我和妈妈钩织了新床罩。Aunt Paula crocheted a beautiful blanket for the baby.宝拉婶婶为婴孩编织了一条美丽的毯子....
But Mitchell aside, saying he was not a statistician.但是米切尔置之不理, 并说他不是统计学家.A statistician has to be something of a generalist.统计学家应是多面手.Individuals vary, but remain constant . So says the statistician.本性好异, 共性却是永久的,统计家们也是...
他沉浸在自己的过度纵欲中。He was indulging his own sexual proclivities.他在性问题上主张克制，反对纵欲。He has a puritanical attitude towards sex.他年轻时恣情纵欲, 现在必须干活了.He had his fling when he was young; now he must work....
石蕊: 从几种地衣类植物中获取的带色有机化合物的混合物.Litmus: Mixture of coloured organic compounds obtained from several species of lichens.地衣类植物生长速度慢,有好几年的寿命.其生长依赖于霉菌和海藻的共生.Lichens, which grow slowly and live for many years, result from fungi a...