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。