重点讲解：
1. a combination of
结合；联合；混合；
eg. Good consulting is a combination of detective work, counseling, and in-depth industry knowledge. "
好的顾问结合了侦探工作、咨询服务和深入的行业知识。
eg. Keeping fit requires a combination of healthy eating and regular exercise.
将健康的饮食习惯和经常性的锻炼二者结合才可以让身体保持健康。
2. the same as
与…相似；与…一样；
eg. He just wanted the war to end, the same as Wally did.
他只不过希望战争结束，和沃利想的一样。
eg. Driving a boat is not the same as driving a car.
驾船和开车不是一回事。
3. chill out
（疲劳、紧张过后）放松，松弛；
eg. After raves, we used to chill out in each others' bedrooms.
以前每次狂欢派对过后，我们都会到彼此的卧室去放松一下。
eg. If you lead a stressful life, try to chill out by relaxing with friends after work.
如果你生活在压力之中，通过工作之余与朋友的放松来使自己冷静下来。
