1. Tai chi is just one form of exercise studied for its fall-preventing benefits as part of a recently completed six-year project by the National Institute on Aging and the National Institute of Nursing Research.
    全国老龄协会和全国护理研究协会最近完成了一个为期六年的研究项目，其中一部分是研究太极等锻炼方式在防止摔跤方面的益处。

2. This fall, the Hyde Foundation is scheduled to begin a preliminary public school program in Baltimore.
    今年秋天，海德基金会计划在巴尔的摩启动公立学校预备教学计划。

3. The human cloning situations that experts consider most frequently fall into two broad categories:
    专家们考虑得最多的关于克隆人类的情形可以分为两大类：

4. They cover their eyes; they put their heads down; they sing to themselves; they try to play games or even fall asleep.
    他们或蒙上眼睛，或低头不看，或自己唱歌，或玩游戏，甚至还睡着了。

5. Night after night, in the hot summer and early fall of 1940, a deep, steady voice came over the Atlantic Ocean from England to America, telling of England's battle for survival under the waves of German bombers.
    在1940年的炎夏和早秋的一个个夜晚，有一个深沉而平稳的声音飞越大西洋，从英国传到美国，讲述着英国在德国轰炸机轮番进攻下为生存而进行的战斗。

6. He must have been pretty gullible to fall for that old trick.
    他准是有点儿傻, 才落入那惯用的圈套.

7. He swayed slightly, as if about to fall.
    他身子一歪, 像要倒下.

8. Don´t let the child fall into the pit.
    别叫孩子掉进坑里去。

9. As administrative overheads rise, so the earnings of the business after meeting he expense of administration, will fall;
    管理费用增加了，那么在扣除管理费用后，企业的收入就降低了。

10. As he began to fall asleep, Dali would drop the spoon onto a plate on the floor.
    当他一要入睡时，勺子就会掉到地板上的盘子里。