听力原文

A hornet sting is agony. But for now it's distracted,intent on cutting away a piece of grasshopper small enough to carry back home.
被大黄蜂蛰伤是一件很痛苦的事情。现在大黄蜂的心思都在蚱蜢身上，它要咬下一块足够小的蚱蜢肉以便带回蜂巢。
Success! The white feather hardly slows the hornet, and, more importantly, it can be seen. Now the hunter is the hunted.
成功了！白色的羽毛几乎没有迟滞黄蜂的飞行速度，然而，更重要的是，白色羽毛能够为猎人导航。猎人的狩猎现在开始了。
So long as Po and Xue Ming can keep up! Back at the nest, the other hornets immediately begin to cut the feather free.
Po与Xue Ming刚好能够跟上。回到蜂巢后，其它的大黄蜂立即把羽毛咬碎。
But it's too late. The nest's location has been betrayed.
但是为时已晚。蜂巢的位置已经暴露。

重点讲解

重点讲解：
1. for now
暂时，目前，眼下；
eg. Goodbye for now; I'll be in touch.
现在要告别了，我会同你联系的。
eg. Let's adjourn for now and continue this discussion next time.
现在咱们先暂停讨论，下次再继续讨论这个问题。
2. intent on sth./doing sth.
坚决的；下决心做某事；
eg. The play starred a well-known retired actress who was intent on a come-back.
该剧由一名志在复出的著名隐退女演员主演。
eg. He's intent on getting promotion, and no one's going to stop him!
他一心一意想得到晋升，谁也劝阻不了他。
3. cut away
切掉；切除；
eg. He cut away the material which he didn't need.
他把不需要的材料剪裁掉了。
eg. We cut away all the dead wood from the tree.
我们把树上的枯枝全都砍去。
4. so long as
只要；
eg. We can arrange everything so long as we have enough time.
只要有足够的时间，我们就能安排一切。
eg. It matters little who does it so long as it is done.
只要事情做了，谁做都行。
5. keep up
跟上；不落后；
eg. Things are changing so fast, it's hard to keep up.
事情变化得太快了，很难跟上形势。
eg. If you cannot keep up, I can walk more slowly.
要是你跟不上，我可以走得慢一点儿。