| 1. | Some of these problems, similar to those of living in outer space, are pressure, lack of oxygen and weightlessness .
其中有一些问题就象在外层空间生活时会遇到的问题一样，是压力、缺氧和失重。 |
| 2. | Astronauts in flight must adjust to weightlessness
太空人在飞行中得适应失重状态。 |
| 3. | Astronauts in flight must adjust to weightlessness
宇航员在飞行中得适应失重状态。 |
| 4. | Astronauts in flight must adjust to weightlessness
宇航员在飞行中必须适应失重状态。 |
| 5. | Astronauts in flight must adjust to weightlessness
太空人在飞行中必须适应失重状态。 |
| 6. | In weightlessness , a drop of liquid takes a spherical shape
在失重状态下，一滴液体呈球形。 |
| 7. | Astronauts in flight must adjust themselves to weightlessness
宇航员在飞行中必须适应失重 |
| 8. | The astronauts soon got used to the condition of weightlessness
宇航员们很快就适应了失重的状态。 |
| 9. | The astronauts soon got used to the condition of weightlessness
那些宇航员很快就习惯了失重状态。 |
| 10. | Causing a period of weightlessness for the president and his staff
使得总统和其随从出于失重状态。 |
