重点讲解：
1. on top of 另外；加之；除…之外(还)；
On top of it being dark, it rained, which made the going even tougher.
天很黑，又下着雨，路更难走了。
2. bring in 赚得，挣（钱）；
He said leeks were his favorite vegetable, and he had read that they were easy for beginners to grow and bring in a stable income.
韭菜是他的最爱，同时他了解到韭菜也非常容易种植并且收益稳定。
3. no less than 不少于；
We walked no less than three miles.
我们走了3英里之远。
4. in total 总共；总计；
In total, Demark won two gold and six bronze medals in Athens.
在雅典奥运会上，丹麦一共获得了两枚金牌和六枚铜牌。