herbicide中文解释

n,[农药]除草剂,同近 n,[农药]除草剂,同近的英语怎么说

But water containing the herbicide cannot be released back into the river and it is known that low water levels can harm river ecosystems accustomed to higher levels..但含有除草剂的水不能再排向河流，而且我们知道低水位将会对习惯于高水位的河流生态系统造成危害。

除草剂英释中释na substance used to kill unwanted plants