1. C.You decide to present your point of view; you explain your reasoning seriously to your friend.
    c.你决心要表明你的观点；你认真向朋友解释你的理由。

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. When the girl shook her head in bewilderment, Harry went on to explain it.
    当这个售货员为难地摇着头时，哈里继续解释.

4. What a feeling that was! How can I explain?
    这是一种什么样的心情啊！我该如何解释呢？

5. The sagas of these people explain that some of them came from Indonesia about 2,000 years ago.
    有关这些人的传说解释道:他们中的一些人是大约两千年前从印度尼西亚来的.

6. The sagas of these people explain that some of them came from Indonesia about 2,000 years ago.
    当地人的传说却告诉人们：其中一部分是约在2,000年前从印度尼西亚迁来的。

7. They make it simple and explain the risk of catching AIDS to friends their own age much better than an adult can.
    这些青少年使这门课程变得简单易学，并向他们的同龄朋友解释感染艾滋病的危险性，他们干得比成年人出色得多。

8. Today people from the neighborhood, which is made up mostly of expensive one-family homes with the exception of the two apartment houses near the railroad station, find it difficult to explain why they didn't call the police.
    该住宅区的居民多住在豪华的独门独户别墅，只有火车站附近有两幢公寓楼。他们都感到很难解释自己当初为何没有报警。

9. Nearly a week passed before the girl was able to explain what had happened to her.
    差不多过了一个星期，姑娘才能够述说她的遭遇。

10. Nearly a week passed before the girl was able to explain what had happened to her.
    差不多过了一个星期，姑娘才能够述说她的遭遇。