" There's really not a lot that you can do, " says Farrer.

“能够做的真不多，” 法瑞说。

It's not " farrer" ; it's " farther" and " farthest" .

这不是“farrer”；它是“更远”和“最远”。

A high enough dose of microcystin could cause liver or kidney failure, says David Farrer, a public health toxicologist with the Oregon Health Authority.

高剂量的微囊藻毒素会导致肝肾功能衰竭，俄勒冈州卫生局的公共卫生毒理学家大卫·法瑞尔说道。