That's why we see rates of young women participating in sports drop off precipitously between the ages of 11 and 14.

这就是为什么我们看到年轻女性参与体育运动的比例在11到14岁之间会急剧下降。

As prices at the pump have soared, the president's approval rating has fallen sharply.

随着汽油价格飙升，总统的支持率急剧下降。

Now, it's become something of a ritual to debate the value of a college degree, but as current population survey data show, there has been a sharp decline in employment among men without college degrees compared with those who have them.

现在，讨论大学学位的价值已经成为一种习惯，但根据目前的人口据显示，与拥有大学学位的男性相比，没有大学学位的男性的就业率急剧下降。

As plants around the world die out, oxygen levels plummet.

随着世界各地的植物相继死亡，氧气含急剧下降。

But in the last century, populations of the endangered African penguin have plummeted, due in part to human disturbance, egg poaching and climate change.

但在上个世纪，非洲企鹅的急剧下降，濒临灭绝，部分原因是由于人类活动、企鹅蛋的偷猎和气候变化。

And without all that fresh produce, our nutrition would take a nosedive.

如果没有这些新鲜农产品，我们的营养会急剧下降。

It's been used to make everything from jewelry to figurines, to piano keys, but it's also led to the decimation of some elephant species by poachers, people who illegally killed the animals for their ivory.

象牙一直用来制造从珠宝到雕像, 钢的物件, 但这也导致一些大象被非法杀害动物的偷猎者大规模猎杀, 造成大象物种急剧下降。

Nanotechnology could also revolutionise the way that we generate power. The cost of solar cells will be drastically reduced so harnessing this energy will be far more economical than at present.

纳米技术还会变革我们产生能的方式。太阳能电池的价格将会急剧下降，所以使用这种能源会比现在实惠得多。

But the price of oil which is sold by the barrel has fallen dramatically because of the coronavirus pandemic, and it made headlines in history this week because at one point, U.S. stock market oil prices were negative.

但是由于冠状病毒大流行，单桶石油价格急剧下降，本周，由于美国股市油价一度为负，油价破天荒登上了新闻头条。

And TB diagnosis and treatment levels plummeted.

结核病的诊断和治疗水平急剧下降。

Japan's population plummeting for more than five years.

日本人口连续五年多急剧下降。

State subsidies for public colleges and universities have declined precipitously, and state funding represents an increasingly small share of the budget at public research universities.

各州对公立大学和大学的补贴急剧下降，公立研究型大学的拨款在州财政预算中所占比例越来越小。

From October to the end of the year, this figure falls dramatically.

从十月到年底，这一字会急剧下降。

So not only are we gonna see a precipitous decline of yields over time, we're gonna see much more frequent disruptions and complete collapses of harvest in certain regions.

因此随着时间推移，产会急剧下降，在某些特定区域，我们还将看到粮食更加频繁的停产，甚至彻底颗粒无收。

Now when you think of New Zealand, you might think of kiwis which is the country's iconic national bird but the population of these flightless birds has plummeted.

当你想到新西兰，你可能还会想到几维鸟，它是新西兰国鸟，但这种不会飞的鸟的正在急剧下降。

The Prime Minister Scott Morrison pledging $35 million in the next four years to protect the species, after the number of koalas plummeted in the last few years.

在考拉在过去几年中急剧下降之后，总理斯科特·莫里森承诺在未来四年里将拨款3500美元来保护它。

Church attendance and membership numbers have been falling drastically.

教堂出勤率和会员人急剧下降。

By 1915, the percentage of electric cars on the road had plummeted.

到了 1915 年，公路上行驶的电动汽车的比例急剧下降。

Once abundant, sea turtle populations have dramatically declined in the past two centuries.

曾经丰富的海龟在过去的两个世纪里急剧下降。

In Britain, for example, happiness fell sharply during the two world wars.

例如，在两次世界大战期间，英国幸福感急剧下降。