Although a little lidocaine would be nice.

不过来点卡因倒是不错。

It isn't a better numbing agent, but it does bind a different family of proteins better than lidocaine does: taste receptors.

它不是一种更有效的麻醉，但它确实含有一组不同但卡因更好的蛋白家族：味觉感受器。

Since lidocaine is incredibly useful, the drug researchers were trying to see if they could find something similar that worked even better.

既然卡因超级有用，药品研究人员就想试一试能否找到它更有效的类似物质。