重点讲解：
1. so that
（用于引出结果）因此，所以；
eg. There was snow everywhere, so that the shape of things was difficult to identify.
到处是雪，所以万物的形状都难以辨认。
eg. He has enough money so that he can live in comfort.
他有很多钱，足可舒舒服服过日子。
2. a matter of+时间
强调时间短；
eg. That school was sorted out in a matter of two months.
那所学校仅用了两个月的时间就整顿好了。
eg. This job will only take a matter of minutes.
这件事只要几分钟就会做好。
3. not bad
不错的，不坏的，挺好的；
eg. They are not bad in themselves but they're so weak-minded.
他们本质并不坏，只是优柔寡断。
eg. That was not bad for a first attempt.
按初次尝试来说，那就算不错了。