China successfully launched and recovered a reusable spacecraft after it spent two days circling the earth.

中国可重复使用航天器成功发射，并于绕行地球两天后安全着陆。

There were two helicopters circling around.

有两架直升飞机在周围盘旋。

A number of birds are circling overhead.

很多鸟在头顶上空盘旋。

The sky was deep blue, and above their heads the eagle was circling with outstretched wings.

天空是深蓝色的，鹰在他们头顶上展翅盘旋。

There are dragonflies circling over a pond in fall.

秋天里有蜻蜓在池塘上面打圈飞行。

The airplane is circling overhead.

飞机在上空回旋。