Eurasian watermilfoil, a weed not native to Frida Lake, has reproduced prolifically since being accidentally introduced there.
欧亚水草是一种不属于弗里达湖的杂草，自从被意外引进后，就大量繁殖。
In order to eliminate the weed, biologists proposed treating infested parts of the lake with a certain herbicide that is nontoxic for humans and aquatic animals.
为了消除这种杂草，生物学家建议用某种对人类和水生动物无毒的除草剂来处理受感染的部分湖泊。
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