translation.en: But in each fly, we put it back only into certain neurons and not in others, and then we test each of these flies for their ability to learn and for hyperactivity.
translation.zh: 但在每只果蝇身上，我们仅仅放回到 固定的神经元，然后我们测试 每一只果蝇的学习能力以及过度活跃现象。