重点讲解：
1. aim to do sth. 致力于；旨在；以…为目标；
They aim to reduce unit costs through extra sales.
他们希望以更多的销量来降低单位成本Y_BIVAe7)K[)8Iu3a^(J。
2. shut down (使)(工厂、公司等)关闭，歇业，停业；
They shut down the nuclear reactor for safety reasons.
出于安全原因他们关闭了核反应堆YaV6-f^;B%Vum。
3. compared to 与…相比；和…比起来；
Compared to people living only a few generations ago, we have greater opportunities to have a good time.
比起上几辈人，我们有更多机会享受生活6WybM,3C7K&0。
4. agree to do sth. 同意；应允；答应；
It is unlikely that the rebels will agree to demobilise.
叛军不太可能会同意解散武装R;k|VvR!p&Nmoy,SU。