embryonic phase造句

例句与造句

1. Introduction the embryonic phase is very important for the development of multicellular organisms . at that time embryos are affected by various harmful environment easily
   目的胚胎时期是多细胞生物个体发育过程中的一个重要阶段，这一时期的胚胎易受外界不利环境因素的影响。
2. It's difficult to find embryonic phase in a sentence. 用embryonic phase造句挺难的