The human spaceflight carrier rocket project had seen success in blast-off from the first rocket to the fourth one laying a solid foundation for the blast-off of the fifth rocket.
载人航天运载火箭经历了从第一枚到第四枚发射的成功，为第五枚火箭发射打下了坚实基础。
2
The space shuttle had been scheduled to blastoff 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》
3
Columbia is set to blastoff at 1:20 a.m. Eastern Time tomorrow.