重点讲解：
1. in force 大规模地；大量；
Voters turned out in force for their first taste of multi-party elections.
大批选民前来参加他们的第一次多党选举r!KcW-QYYnJHL%O1。
2. let off 使（炸药等）爆炸；开（枪、炮等）；
A resident of his neighbourhood had let off fireworks to celebrate the Revolution.
他家附近的一个居民燃放了烟花庆祝革命胜利nFY^t-SdEM_cXHDF。
3. at risk 处境危险；有风险的；在危险中；
Hundreds of thousands of people are at risk.
有几十万人正处于危险中Qh4m=!JFobq。
4. to the wire 到最后一刻；
Negotiators again worked right down to the wire to reach an agreement.
谈判人员又是直到最后时刻才达成了协议c_gRR32MUe7n7i2OWGXs。