| 1. | To keep the engine running, the airplane or missile rams through the atmosphere at a high speed . 为了使发动机不断地运转,飞机或导弹以很高的速度冲过大气层。 |
| 2. | Trains cannot stop quickly when moving at a high speed 高速行进中的火车不能迅速的停车。 |
| 3. | The hook rotates at a high speed while the machine is in operation 缝纫机操作中,旋梭高速地旋转。 |
| 4. | The train was going at a high speed 火车正以高速度行驶。 |
| 5. | China has been developing at a high speed in the past 20 years 在过去的二十年中,中国一直高速向前发展 |
| 6. | The train is going at a high speed 火车正在高速行进。 |
| 7. | In the past 20 years , china was keeping developing at a high speed 在过去的20年中,中国一直高速向前发展。 |
| 8. | In the past 20 years , china has kept development at a high speed 在过去的20年中,中国一直高速向前发展。 |
| 9. | In the past twenty years , china has been developing at a high speed 在过去的20年中,中国一直高速向前发展。 |
| 10. | China has been developing at a high speed in the past twenty years 在过去的20年中,中国一直高速向前发展。 |