重点讲解：
1. pack into
挤满；塞满；
eg. Hundreds of thousands of people packed into the mosque.
几十万人挤进了那座清真寺。
eg. People packed into the bus.
人们挤进了公共汽车。
2. at the same time
同时；
eg. Several matters have cropped up at the same time.
几件事挤在一块儿了。
eg. We must unite with them and at the same time struggle against them.
我们必须在团结他们的同时同他们斗争。
3. a whole lot of
很多；许多；
eg. And that should save a whole lot of power.
这样应该可以节省很多能量。
eg. I don't really wish to earn a whole lot of money, I just wanna be healthy. At the end of the day, that's what really matters.
我并不希望赚大钱，我只希望身体健康。说到底，这才是真正重要的。
