Those were the best years of my life.
那些年是我一生最幸福的时光。
It was a chance meeting that would change my life.
那次偶然的`会面改变了我的一生。
It was the best day of my life.
这是我一生中最美好的一天。
In essence, your situation isn't so different from mine.
从本质上讲，你我的情况并非相差很远。
The engine is used for pumping water out of the mine.
这台发动机是用来从矿井中抽水的。