One day I went shopping with a good friend of mine, and watched her negotiate her way to lower prices on everything.
直到有一天，我和一个好朋友一起去买东西，看到她以自己的方式对任何商品都进行杀价。
2
Oneway to do this is to devise software systems that mine data on large Numbers of patients with similar illnesses and provide guidance to doctors in real time.
One day when I was going to school, I bumped into Ivy on the way out of my building, and she was standing next to this guy, he lived in the building right beside mine.