从前,有几位科学家去原始森林调查世界上最稀有的动物。每一位科学家都想成为拍摄到最稀有动物、研究它的第一人。因为最稀有动物只在夜间活动,所以科学家们在白天通常都研究其他问题。他们中最出色的一位叫沃尔特。每天在早饭前,他都花上一个小时坐在书桌前,把全 In the past, several scientists went to virgin forests to investigate the world’s rarest animals. Every scientist wants to be the first person to photograph the rarest animal and study it. Because the rarest animals are only active during the night, scientists usually study other problems during the day. The best of them is Walter. Every day before breakfast, he spent an hour sat at the desk, put the whole