translation.en: It may come as a surprise to some of you to hear that quite large areas of what are currently desert were actually forested a fairly short time ago.
translation.zh: 这可能对在座的某些人来说 听到这消息有点惊讶，因为这一大片地方目前是沙漠 但事实上这地方在不久之前其实有座森林