重点讲解：
1. aim to do sth. 致力于；旨在；以…为目标；
These exercises aim to counteract the effects of stress and tension.
这些训练旨在抵消压力与紧张的影响。
2. as well as 除…之外；也；还；
They visited some factories, hospitals as well as the school.
他们参观了这所学校，还参观了工厂和医院。
3. set off 动身；出发；启程；
We set off in a southerly direction.
我们向南出发了。
4. deal with 处理；应付；与…打交道；
I have no way yet as to how to deal with such a complicated situation.
这样复杂的局面该怎么应付我还没谱儿呢。