| 1. | A body falling from rest has a speed of 9.8m/s at the end of the first second .
一个由静止状态下落的物体在第一秒末的速度是9.8米/秒。 |
| 2. | At full throttle, he drives the skiff upward, straight at the plummeting breaker .
他开足了油门，把船向前急驶，向着那垂直下落的浪头驶去。 |
| 3. | As we know now , heavy objects and light objects fall at the same speed unless air holds them back .
我们现在都知道，如果没有空气的阻力，重的物体和轻的物体下落的速度是一样的。 |
| 4. | If no wind is blowing, raindrops fall vertically and a man at rest with an umbrella directly over his head does not get wet .
如果不刮风，雨点是垂直下落的，一个静止不动的人，头上有一把雨伞，就不会淋湿。 |
| 5. | The fallen apple illustrates the principle of gravity
下落的苹果证明了地心引力原理。 |
| 6. | A falling object gains momentum as it falls
下落的物体落下时动量增加。 |
| 7. | ' police are keeping an open mind as to her whereabouts
警方欢迎市民继续提供关于她下落的消息 |
| 8. | The police found a clue to her whereabouts
警方找到她下落的线索。 |
| 9. | She has told them nothing that could shed light on her husband ' s whereabouts
她没向他们提供任何有关她丈夫下落的线索。 |
