1. "It's clear that the brain benefits from exercise," says brain scientist William Greenough of the University of Illinois at Urbana-Champaign.
    伊利诺伊大学厄巴纳-尚佩恩分校的脑科学家威廉·格里诺说，"很明显，运动使大脑受益。"

2. She set sail on Sunday, 5 July 1767, headed directly for Annapolis.
    船在1767年7月5日星期日开航，直驶安纳波利斯。

3. Suddenly, later that morning, the solution became clear.
    快到中午时，解决办法突然变得清晰起来。

4. Self-respect and a clear conscience are powerful components of integrity and are the basis for enriching your relationships with others.
    自尊和问心无愧是正直的两个重要组成部分，也是加深你与他人关系的基础。

5. She halted. Then, nervously, she headed up the street, where there is a police call box.
    她停下了脚步，接着紧张地向街头走去，那儿有一个报警电话亭。

6. Suppose that during a negotiation with some government officials, the Minister of Trade makes it clear to you that if you offer him a substantial bribe, you will find it much easier to get an import license for your goods, and you are also likely to
    假定在一场与政府官员的谈判中，贸易部长向你明确表示如能给他一大笔贿赂，拿到进口许可证就会容易得多，还可能避免他所说的"程序上的延误" 。

7. Much of the country has already been clear-cut, and soil erosion has been extensive.
    这个国家许多地区的树木已被砍伐殆尽，而且土地流失范围十分广。

8. You can enjoy the extraordinary sight of unbroken cloud plains that stretch out for miles before you, while the sun shines brilliantly in a clear sky.
    你可以观赏一下展现在你面前的、一望数英里的、连绵不断的云海，同时阳光灿烂，天空清澈明朗。

9. Generally, such parents created a pleasant home governed by clear rules.
    一般来说，这样的家长创造出一个有规矩的、令人愉快的家庭环境。

10. But fearing that she would never see Rastus again----the letter had made that quite clear----she changed her mind.
    但又害怕再也见不到拉斯特斯--这点，信上说得十分明白--于是便改变了主意。