NASA需要好天气来发射战神I-X，因为工程师们要在第一级火箭分离前观测火箭飞行全过程，第一级火箭分离标志着试飞的结束。
NASA needs good weather to launch Ares I-X because engineers need to see the rocket flight all the way through first stage separation, which will mark the end of the test.
神舟六号载人航天飞行圆满成功，标志着我国在一些重要科技领域达到世界先进水平。
The success of the Shenzhou VI manned space flight shows that China has reached world-class levels in some key areas of science and technology.
Bolden在一卷录影带中提到，“一些人说这次最后的航天飞机任务将标志这美国近50年对于人类太空飞行领域统治地位的终结”。
"Some say that this final shuttle mission will mark the end of America's 50 years of dominance in human space flight," Bolden noted in a videotaped message.
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