1. The experts were now fully convinced that the animal was a puma, but where had it come from? 专家们如今已经完全肯定那只动物就是美洲狮,但是它是从哪儿来的呢?
2. It immediately run away when she saw it, and experts confirmed that a puma will not attack a human being unless it is cornered. 当她看见它时,它就立刻跑走了。专家肯定证实,除非被逼得走投无路,美洲狮是不会袭击人类的。
3. The search proved difficult for the puma was often observed at one place in the morning and at another place 20 miles away in the evening. 事实上搜寻工作很困难。因为常常是在早晨在甲地发现那只,美洲狮,晚上却在20英里外的乙地发现它的踪迹。