But, neither this plan nor any other will actually test whether the fish anyone buys at a store is loaded with disease-causing bacteria, mercury, or anything else.
但是,无论是这个计划或别的计划都不会实际检测人们在店里买的鱼是否有致病细菌,汞,或其他东西。
2
The fish that learned to prefer the rich feeder were then allowed to watch their fellow fish feeding in a separate test but, this time, the two feeders had been swapped.