He decided to devote the rest of his life to scientific investigation.
他决定将自己的余生献给科学研究事业。
2.an army of 一大群
An army of workmen was brought in to build the stadium.
一大群工人被招来建筑运动场。
3.ripple effect 连锁反应
His resignation will have a ripple effect on the whole department.
他的辞职将会在整个部门中引起连锁反应。
4.at the bottom 底部
Often I find that anger and resentment are at the bottom of the problem.
我常常发现愤怒和不满是问题的真正根源。
5.bridge the gap 缩小差距
Actually, information technology can bridge the gap between the poor and the rich.
事实上，信息技术可以缩小富人和穷人的差距。
