本集核心英语单词及例句：

1.branch (n.)分支；树枝
Our school has several different branches all over China.
我们学校有全中国几个不同的部门。

2.trunk (n.)树干；躯干
The trunk of a tree is where the tree meets the ground above the roots.
树干是树根与地面接触的地方。

3.situation (n.)情况；局面
Yesterday, we found ourselves in a bad situation when the bus broke down.
昨天，当公共汽车抛锚时，我们发现情况很糟。

4.thick (adj.)浓的，厚的
This fog is so thick that I can barely see where we are going.
雾太浓了，我几乎看不清我们要去哪儿。

5.risky (adj.)冒险的；危险的
Drinking alcohol is often a very risky thing to do if you must drive a car later; you should never drink and drive!
如果你以后一定要开车，喝酒通常是很危险的事。千万不要酒后驾车！