重点讲解：
1. scout out 搜索；侦察（地形）；勘察；
We went ahead to scout out the lie of the land.
我们先走一步，去侦察地形-CdB,]vX;Ns!V;TZMc。
2. in nature 性质上；本质上；
The rise of a major power is both economic and military in nature.
一个大国的崛起究其实质包括经济和军事两个方面(Y#po|^z;aV~5d+F。
3. contribute to (为…)做贡献；
I am sure that this meeting will contribute to the reinforcement of peace and security all over the world.
我相信这次会议将会促进世界范围内的和平与安全^])@EiKggk|。
4. spit out (咬牙切齿地)愤愤说出；
He spat out 'I don't like the way he looks at me.'
他愤愤地说：“我讨厌他那样看着我xGRcp|Al![j]L.|Z+C。”