A headfirst plunge down the stairs; a headlong dive into the pool.

头部向前跌下楼梯；头部向前跳进游泳池里。

The soldiers made a headlong rush for cover.

士兵们不顾一切冲向掩蔽所。

But stocks at one point prices in a headlong fall into the abyss.

但在某个时候，股价计入了经济直落深渊地局面。

The short-faced bear was not as strategically minded - its plan of attack involved a headlong rush.

短面熊没那么有战略头脑，它的攻击方案就是横冲直撞。

Demographers say that no country's birth rate has ever recovered after dropping below 1.5, so governments need to do everything they can to avoid falling into a headlong decline.

人口统计学家们说，没有一个国家的生育率曾在低于1.5之后恢复过元气，所以政府需要不遗余力，以便避免落入一路下滑的趋势。