重点讲解：
1. cooperate with
合作；协作；配合；
eg. The UN had been co-operating with the State Department on a plan to find countries willing to take the refugees...
联合国一直都在与美国国务院合作推进一项计划，寻找愿意接纳难民的国家。
eg. He agreed to co-operate with the police investigation...
他同意配合警方的调查。
2. break down
（机器或车辆）出毛病，损坏；
eg. Their car broke down.
他们的车子出故障了。
eg. The virus caused the computer to break down.
病毒使得计算机出故障了。
3. put together
设计，创造，制订（协议、计划或产品）；
eg. We wouldn't have time to put together an agreement.
我们没有时间来制订出一个协议。
eg. We got to work on putting the book together.
我们得努力编成这本书。
