Astronauts' safe return sparks big celebrations

The successful return of China's second manned spacecraft, Shenzhou VI, early yesterday morning let the nation heave a collective sigh of relief and celebrate a new milestone in aerospace history.

词汇：

manned adj.有人驾驶的, 有人操纵的

spacecraft n.太空船

milestone n.里程碑, 里程标, 重要事件, 转折点