populations declined翻译

populations declined的基本解释

读音: 美: 英:

人口减少：指一个地区或国家的人口数量在一段时间内逐渐减少的现象。

例句

Although overall bird populations declined in hurricane damaged areas, some types of birds suffered more than others.虽然遭飓风破坏地区的鸟类数量总体下降，但某些种类的鸟与其它种类相比受创更甚。
Recently fish populations have recovered as release of industrial pollutants has declined and the lake's waters have become cleaner.最近，随着工业污染物排放的减少和湖水的清洁，鱼类数量有所恢复。
Honeybee populations in many countries, including the United States, appear to have declined markedly in recent years.在多个国家内的蜜蜂群体，包括美国，看起来最近几年都在显著下降。
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