Accidentally or on purpose, many of them are discharged into streams and lakes.
无意或有意地，它们中的许多被排放到河流和湖泊中。
It is better to make mistakes now and on purpose than later and accidentally.
所以最好现在就故意犯些错误来看看，比以后毫无准备地遇到要好多了。
It is better to make mistakes now and on purpose than later and accidentally.
所以最好现在就故意犯些错误来看看，比以后毫无准备地遇到要好多了。
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