translation.en: It made me realize that despite two decades of hard work trying to save these animals, we still have so much work to do if we are to prevent them from disappearing.
translation.zh: 这使我认识到， 尽管二十年的艰苦努力 我们试图拯救这些动物， 但还有许多工作要做， 如果我们要阻止 貘的消失。