What must this experiment have the potential to do, to be a valid scientific experiment?

实验必须有做什么的能力,才能被称为一个有效的科学实验呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

But I do think that there are potential scientific and medical benefits for the use of cloning.

但是，我认为克隆技术的使用大大地推动了科学以及医学的发展。

生物克隆是热点问题 - SpeakingMax英语口语达人