重点讲解：
1. distinguish from 区分；辨别；分清；
Could he distinguish right from wrong?
他能分辨是非吗？
2. each other 互相，彼此；
They looked at each other and laughed.
他们彼此看了看便笑了起来RlB5D#RKMrn1nP2Y[k。
3. turn out 结果发现；结果是；
It turned out that I knew the person who got shot.
结果发现我认识那个中枪的人ccDPc]K|dr1,,lz3YjU。
4. interact with 相互交流；相互沟通；
Millions of people want new, simplified ways of interacting with a computer.
数以百万计的人们想要新的简化方式实现人机交互&2M*oh(499=kl。