求翻译：五十年代研究出一种杀蟥剂Aramite，广泛用于棉花、果树、蔬菜，用了七年后发现能引起大鼠和家犬的肝癌，不得不停用，但也已造成了环境的污染。是什么意思？

Come up with a kill horseleech agent aramite the 1950s, is widely used in cotton, fruit trees, vegetables, with seven years later found to cause liver cancer in rats and dogs, had to disable, but has also caused environmental pollution.

The 50 s can also delete a killing agent, which is widely used Aramite cotton, fruit trees, vegetables, and 7 years after the discovery that the dogs in the home and mouse liver cancer, and had to be stopped, but it also has an environmental pollution.

The 50's study one kind to kill leech medicinal preparation Aramite, widely use in the cotton, the fruit tree, the vegetables, the discovery have been able to cause the big mouse and watchdog liver cancer after seven years, can not but stop using, but have also caused the environment pollution.

50 developed a horse-leech-killing Aramite, widely used in cotton, fruits, vegetables, and spent seven years later found to cause liver cancer in rats and dogs had to be disabled, but also has resulted in pollution of the environment.

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