重点讲解：
1. come into effect 发生效力；生效；
The corporate bond market will explode once these regulations come into effect.
一旦这些监管规定付诸实施，公司债券市场将会呈现爆炸性增长。
2. beef up 改善；加强；改进；提高；
Banks will also be required to beef up their risk management practices.
该计划还将要求各银行加强其风险管理措施。
3. guard against 提防；防范；
We must be on guard against hidden enemies.
我们必须警惕暗藏的敌人。
4. set off 引爆(炸弹)；触发，拉响(警报等)；
Pakistani-American who tried to set off a bomb in Times Square in New York has been sentenced to life in prison.
试图在纽约时代广场引爆炸弹的巴基斯坦裔美国人被判处终身监禁。