Will time travel ever become a reality?
时光旅行真的会成为现实吗？
He could no longer distinguish between illusion and reality.
他再也分不清幻想与现实之间的`区别了。
You need to keep a good grip on reality in this job.
做这个工作你需要充分了解实际情况。
He's really very human when you get to know him.
你若了解他，就知道他确实很有人情味。
In my experience, very few people really understand the problem.
据我的经验看，真正理解这个问题的人很少。