航天飞机的发射因恶劣天气延迟了24小时。

The ___launch of the space shuttle was delayed for 24 hours because of bad weather.

目睹第一架航天飞机的发射是历史上的一个重要时刻。

Witnessing the ___launch of the first space shuttle was a significant moment in history.

新卫星的成功发射增强了民族自豪感。

The successful ___launch of the new satellite boosted national pride.