translation.en: If we put a good copy of the dopamine receptor back in this elliptical structure called the central complex, the flies are no longer hyperactive, but they still can't learn.
translation.zh: 假如我们在果蝇的椭圆形结构 放置一份正常的多巴胺受体， 果蝇就不会再过度活跃，但依旧没有学习能力。