| 例句 |
We saw a video showing the second stage in the development of a human embryo.我们看了一部人类胚胎发育第二阶段的录像片。Embryonic development seems to be controlled principally by a very small number of master genes.胚胎发育似乎主要受制于少数主导基因。Congenital hydrocephalus is present at birth and can result from events during the development of the foetus.先天性脑积水在出生时就已发生，可能是由于胚胎发育中的事件造成的。Genes control the development of an embryo.基因控制胚胎发育。 |