重點講解：
1. come into effect 發生效力；生效；
The corporate bond market will explode once these regulations come into effect.
一旦這些監管規定付諸實施，公司債券市場將會呈現爆炸性增長。
2. beef up 改善；加強；改進；提高；
Banks will also be required to beef up their risk management practices.
該計劃還將要求各銀行加強其風險管理措施。
3. guard against 提防；防范；
We must be on guard against hidden enemies.
我們必須警惕暗藏的敵人。
4. set off 引爆(炸彈)；觸發，拉響(警報等)；
Pakistani-American who tried to set off a bomb in Times Square in New York has been sentenced to life in prison.
試圖在紐約時代廣場引爆炸彈的巴基斯坦裔美國人被判處終身監禁。