But here's the key thing: you know, the other thing we found out is that the ice sheet passed a threshold, that the planet warmed up enough -- and the number's about one degree to one and a half degrees Centigrade -- the planet warmed up enough that it became ...
不过关键点是： 你要知道，我们发现了另外一件事， 那就是这个冰盖曾经越过一道槛， 这个星球曾暖到一定程度—— 温度上升了1度到1度半—— 这星球变暖到它变得。。。