space shuttle program 航天飞机计划
launch space shuttles 发射航天飞机
space shuttle mission 航天飞机任务
space shuttle cargo 航天飞机载荷
1. The NASA space shuttles were used for various scientific missions.
美国航天局的航天飞机被用于各种科学任务。
2. Space shuttles can carry heavy equipment into orbit.
航天飞机可以将沉重的设备送入轨道。
3. Many astronauts traveled to space using space shuttles.
许多宇航员曾乘坐航天飞机前往太空。
A: Do you think space shuttles are still important for research?
A：你认为航天飞机对研究仍然重要吗？
B: They were essential for building the space station.
B：它们对于建造空间站至关重要。
1) 指代往返于地球与太空之间的飞行器
2) 特指曾经在美国航天事业中使用的航天飞机
3) 航天运输工具的统称
1. 航天飞机
e.g.
The space shuttles were retired in
2011.
航天飞机已于2011年退役。
noun phrase
1. Vehicles designed to travel from Earth into space and back to Earth.