在最近几十年里，由于人们对于水资源的需求，死海以惊人的速度干涸。
The Dead Sea has been drying up at a dramatic rate in recent decades as a result mostly of human demands for water.
在最近几十年里，大部分的捕鲸活动都已经停止，除了日本和挪威少数国家仍然在持续。
In more recent decades, much whaling has been stopped, except for a few holdout nations, such as Japan and Norway.
在最近几十年里，新的强大的地面和空间观测站完全改变了人们以前对外太阳系的理解。
Over the last few decades, powerful new ground and space-based observatories have completely changed previous understanding of the outer Solar System.
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