The space shuttle won't lift off the launch pad until Sunday at the earliest.

这架航天飞机最早要到星期天才会发射升空。

《柯林斯英汉双解大词典》

The space shuttle had been scheduled to blast off at 04:38.

这架航天飞机计划于04:38发射升空。

《柯林斯英汉双解大词典》

The space shuttle is taking off tomorrow.

这架航天飞机将于明天起飞。

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On January twenty-eight nineteen eighty-six, shuttle Challenger exploded shortly after take off.

VOA: special.2011.07.27

That's the main engine cut-off when the shuttle's engines turn off and you're in orbit.

NPR: Former Astronaut on NASA Risk Assessment

Is it your dream to see the space shuttle lift off -- in person?

CNN: The Internet: the final frontier for space watchers

And they're looking at--their concern is that it could break off during re-entry and maybe damage the shuttle further back.

NPR: Shuttle Spacewalk Repair Mission a Success