重点讲解：
1. conform to 遵守，遵从，符合(法律、意愿等)；
This mark signifies that the products conform to an approved standard.
这个标志说明这些产品符合指定的标准。
2. compared to 与…相比；和…比起来；
In 1800 Ireland's population was nine million, compared to Britain's 16 million.
1800年，爱尔兰的人口数为900万，而英国则有1,600万。
3. each other 互相，彼此；
We hardly know each other.
我们彼此还不大认识呢。
4. after all 毕竟；终究；
After all, 15 minutes of exercise is better than nothing.
毕竟，锻炼15分钟比不锻炼好。