The bird caught the insects in mid-air.

鸟在半空中捕捉了昆虫。

《牛津词典》

The bird stopped and hovered in mid-air.

这只鸟儿停下来，在半空中盘旋。

《柯林斯英汉双解大词典》

The hawk poised in mid-air ready to swoop.

老鹰在半空中盘旋，准备俯冲。

《牛津词典》

It is a line drawing made out of aluminum wire that looks like a wavy net floating in mid-air.

VOA: special.2009.05.06

Well, first of all, you may not survive for long, if you truly don't accept the fact that things, people being no exception fall when left in mid-air.

首先，你可能活不长，如果你不接受，人会从半空中掉下来的事实。

哈佛公开课 - 幸福课课程节选

The F-22 is what experts call an "air superiority" fighter, designed to defeat enemy jets in mid-air battles.

VOA: standard.2009.07.21

He was famous for tearing recklessly over bumps in the slopes, balancing himself in mid-air.

CNN: Val d'Isere: The hidden home of skiing's 'madmen'

In 1978, an Air India jumbo jet exploded in mid-air near Bombay, killing 213.

CNN: Thursday,

Two de Havilland Comet aircraft the world's first commercial jet broke up mysteriously in mid-air in 1954.

ECONOMIST: Aircraft fatigue