the development of in vitro fertilization体外受精的研究发展The sex of the embryo is predetermined at fertilization.胚胎的性别早在受精时就决定了。They damage female strobili during the interval between pollination and fertilization.在传粉与受精的间隔期间,他...
他们去了自行车棚的后面，短暂地拥吻了一下。They went for a quick snog behind the bike sheds.在唱完最近的畅销歌曲之后, 他们短暂地休息了一下.After they sang all the latest hits, they took a short break.我们就必须(至少短暂地)回顾它的开端.We must go back, briefly at least, to its beg...
Essential components of free protein serum of cow injection are micromolecule active peptide and phosphoinositide oligosaccharide.小牛血清去蛋白注射液的主要成分是小分子激活肽和磷酸肌醇寡糖,临床上用于治疗缺血性脑血管病.Calcitonin gene - related peptide ( CGRP ) is...