VOA慢速英语:Scientists: Gene Editing Should Stay in Laboratories

短语讲解：

1. They might also be able to permanently remove species of plants and animals that are destructive to other species.

be able to 能够
例句：He will be able to take up his normal routine shortly.
他不久就能处理日常事务。

2. Changed genes will continue to spread as long as an animal or plant continues to reproduce.

as long as 只要; 如果; 既然
例句：As long as I breathe, I will fight them.
只要一息尚存，我就要跟他们斗。

3. It is possible that those genes could harm those creatures or even lead to their disappearance from our planet.

lead to 导致
例句：Economic models often lead to the study of systems of equations.
经济模型经常导致对方程组的研究。