Police fired a volley over the heads of the crowd.

警察朝人群头顶上方射出一排子弹。

《牛津词典》

On some statues the heads were removable.

有些雕像的头是可以摘下来的。

youdao

This machinery is so precise that a human hair couldn't even pass between the heads and spinning platters, yet it all works in terrific speeds.

这台机器是如此精确，以至于人类的头发甚至不能从头部和旋转的磁盘之间穿过，但它的运转速度却是惊人的。

youdao

She says the amount of space needed between the plants depends on how big you expect the heads to be.

VOA: special.2009.03.03

This machinery is so precise that a human hair couldn't even pass between the heads and spinning platters, yet it all works in terrific speeds.

这些设备是很紧密的以至于人的头发,都不能在头和旋转的磁盘之间通过，尽管如此，它的运行速度非常快。

哈佛公开课 - 计算机科学课程节选

You'd say, "Well, you know, it kind of works out that the heads group is kind of really--heads, smart."

你会说”这个嘛…,应该是头像群体,因为头脑就代表聪明“

耶鲁公开课 - 心理学导论课程节选

As the narrative unfolds, the Khmer offer the heads of their now vanquished enemies to the king.

BBC: Piecing together puzzles in Cambodia

Others want to see the heads of state companies, newspapers and television stations removed.

ECONOMIST: Egypt's and Tunisia's transitions

Any comments made to the post are then immediately relayed back to the heads-up display.

ENGADGET: Recon goggles gain Facebook integration and augmented reality at Google I/O (hands-on video)