1. But, yes, in theory at least it might be possible.
    但是，的确，至少从理论上说克隆死去的人是可行的。

2. But brain theory could simply not explain the questions we wonder about most:
    但大脑研究理论就是无法解释我们最想弄清的问题：

3. While this eliminates risk and helps to insure that the man and woman will be similar in background and outlook, the theory is that the personalities of the couple provide enough differences to make the relationship interesting.
    虽然这种做法排除了风险，也有助于确保男女双方有相同的背景和观点，但从理论上来说，是夫妻个性方面的差异才使得婚姻关系引人入胜。

4. This theory is abstruse.
    这个理论很难解。

5. The theory is based on a series of wrong assumptions.
    这一理论是以一系列错误的设想为根据的.

6. The teacher is explaining the theory of evolution to the students.
    老师正在给学生们解释进化论。

7. Then, almost 400 years ago, an Italian scientist named Galileo began to question Aristotle´s theory of falling objects.
    后来, 大约在四百年前, 一位名叫伽利略的意大利科学家开始怀疑亚里斯多德的落体学说.

8. The boy is mustard on the theory of numbers and on solid geometry.
    这男孩对算术和立体几何有强烈的兴趣。

9. The book, however, is much more than an argument against the latest racially biased theory.
    然而，此书还不仅仅是对目前的种族偏见理论的反驳。

10. His theory marked a new epoch in mathematics.
    他的学说标志着数学上的新纪元。