Swallows fly about, carefree and at liberty.

燕子自由自在地飞翔。

Flowers fade and fall and fly about up in the sky.

花儿谢了，落了，在天空旋转飞舞。

Birds realistically fly about and wildlife teams all around.

鸟儿在空中飞着，随处都可以见到动物。

Older versions of the hover vehicles could fly about as fast as helicopters, DE Roche said.

旧版本的悬停汽车能飞一样快直升机，德罗氏说。

During a sustained air campaign the air Force is able to generate and fly about 4 B-2s per mission from CONUS.

在一个持续的空中战役中空军有能力在每次任务中从CONUS出动大概4架B - 2。