This decline in vigour with the passing of time is called ageing.

生命力随着时间的流失而衰退叫做衰老。

Fish and chip shops have declined in quality.

炸鱼薯条店的质量下降了。

But that structure declined in use over time.

但随着时间的推移，这种结构的使用逐渐减少。

The pandemic quickened enrollment declines in many districts.

疫情加速了许多学区的入学人数下降速度。

Officials watching closely for an irreversible decline in numbers.

官员们密切关注着这些物种数量不可逆转的下降。

Question 23. What contributed to memory decline in the participants?

是什么原因导致参与者的记忆力下降？

That comes after an even steeper decline in 2020.

在此之前，2020年美国人的预期寿命降幅也很大。

The decline in American executions reflects a broader global trend.

美国处决数的下降反映出全球的趋势。

Meta saw a decline in revenue for the first time.

梅塔公司的收入首次出现了下降。

There was about a 15 percent decline in crime.

下降幅度约为15%。

Who is to blame for the current decline in manners?

谁应该对如今的礼仪滑坡负责呢？

He has COVID-19, and his condition has declined in the past few days.

他感染了新冠肺炎，其病情在过去几天出现恶化。

China saw a slight decline in passenger flows across the railway sector yesterday.

中国铁路部门的客流量昨日略有下降。

And it was one of the largest declines in our history.

这是美国历史上最大的衰退之一。

A decline in prices might exert a negative influence on payment.

市场价格下跌对支付有负面影响。

A decline in " distressed" home sales shows an improving housing industry.

被迫出售房屋的数量减少也就表明房地产业正在改善。

Economists there note quote, " the unprecedented magnitude of the decline in employment and production."

经济学家指出，" 就业和生产的下降幅度前所未有。"

Many see little hope for a decline in today's rude behavior.

很多人对于如今无礼行为是否会减少不抱什么希望。

As a result, the subway saw a rapid decline in ridership.

因此，地铁乘客量迅速下降。

So with the dramatic decline in bee population, should we be worried?

所以随着蜜蜂数量的急剧减少，我们应该担心吗？