translation.en: So whenever a memory is being formed, any active cell for that particular memory will also have this light-sensitive switch installed in it so that we can control these cells by the flipping of a laser just like this one you see.
translation.zh: 所以每当一段记忆形成时， 光敏开关也会被安装到 参与这一特定记忆的每一个细胞上 正如你们所见，我们也就能 通过调控镭射光来控制脑细胞啦。