translation.en: So if you rear a mouse in a standard cage, a shoebox, essentially, with cotton wool, alone and without much stimulation, not only does it not thrive, but it will often develop strange, repetitive behaviors.
translation.zh: 如果你在一个正常的笼子，或者是鞋盒里， 特别是有药棉的那种， 养一只老鼠， 就让它孤零零的， 它不仅不会活跃， 反而还会有奇怪的、 重复的举动行为。