external development

• 体外发育

external development的用法和样例：

例句

1. The study indicated that bovine embryo recloning is similar to the embryos cloning except for the embryo's low in vitro development ability.
   研究结果表明，牛继代核移植胚胎除体外发育能力低于原代核移植胚胎外，继代核移植在操作各环节上与原代核移植相同。