英语语法分析

For example, some venoms are chemical-based, and others are bacteria-based, so they clearly had to have developed along different routes and may not be as closely related as we thought.

例如，一些毒液基于化学物质，而另一些基于细菌，所以它们显然是由不同的途径产生的，可能不像我们想象的那样密切相关。

Sea snakes generally possess very toxic venoms.

海蛇一般都有剧毒。

And we're also finding venoms that are modifying and killing cancer cells.

而且我们正在寻找可以改造和杀死癌细胞的毒液。