ASTP

例句：

1. 1. The astronauts were sent to the moon on a special mission.
   宇航员被派往月球执行特殊任务。
2. 2. Astronauts are trained to survive in space for extended periods of time.
   宇航员接受训练，以在太空中长时间生存。
3. 3. Astronauts use sophisticated equipment to explore the universe.
   宇航员使用高级设备来探索宇宙。