重点讲解：
1. pair off （使）成对儿，（使）成双；
The squad members paired off to find places to eat and sleep.
小组成员结对儿找地方吃饭睡觉-@9Vw00nZAOx。
2. be familiar with 熟悉；熟知；
We're familiar with the geography of New England.
我们熟悉新英格兰的地形Q!N+RXe(0@+8Cpo。
3. be likely to do sth. 可能（做…）的；有（…）倾向的；
The matter is likely to go to arbitration.
这件事很有可能要提请仲裁7w-#yAH#[;9。
4. walk away 脱身；一走了之；
He says the force of the blast collapsed his shop while he was standing inside but he managed to walk away.
他说，炸弹的爆炸力震毁了他的商店，当时他在正站在店里，不过逃了出来aH^TTfbgLGMV=q591nN。