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1.blast off 发射升空
Columbia is set to blast off at 1:20 a.m. Eastern Time tomorrow.
哥伦比亚号定于东部时间明晨1:20发射升空。
2.a tiny percentage of 一小部分
The cuts add up to only a tiny percentage of the $3.5 trillion budget approved by Congress last month.
削减的这些经费只占国会上个月通过的3万5000亿美元预算的很小一部分。
3.blast into 冲入
Like fighter pilots, our astronauts would be able to blast into space at the drop of a hat.
就像战斗机飞行员一样，我们的宇航员可以轻而易举的冲入太空。
