这所学校是专门为那些因患病而导致学业中断的孩子们开办的。The school is specially for children whose schooling has been disrupted by illness.我哥哥常因患病而缺勤.My brother is often absent from work because of illness....
读者或许已经注意到, 在西德已经建造了一些人行桥.As the reader might suspect, a number of pedestrian bridges have been built in Germany.请你使用那边的人行桥. 它很安全.Please use the footbridge over there. It's safe.人行桥在水灾中冲走了.The footbridge washed away ...
这标志着卵裂发育阶段的结束.This marks the end of the cleavage stage of development.受精卵发育成桑椹胚的过程叫卵裂.The growth a zygote a morula is called fragmentation.在早期卵裂中, γ微管蛋白聚集在胚胎的细胞核周围.During early cleavage, � � - tubulin distributes around ...