The space shuttle is launched by two rocket boosters.

航天飞机由两个火箭助推器发射。

The tent is held up by two poles.

帐篷由两根杆支撑着。

His flight was delayed by two hours.

他的航班被延迟了两个小时。

Our offices are apart by two floors.

我们的办公室相隔两层楼。

The flight was delayed by two hours.

飞机延误了两个小时。

The entrance is flanked by two guards.

入口的两侧位于两名守卫。

The monument is flanked by two statues.

纪念碑的两侧位于两座雕像。

She outlived her husband by two decades.

她比她的丈夫活得长了二十年。

The biga was often pulled by two horses.

双轮战车通常由两匹马拉。

The library book is overdue by two weeks.

图书馆的书已经逾期两周了。