曾经盛极一时 meaning in Chinese

has been

Twenty or 30 years ago wulai began to flourish because of attractions such as its aboriginal culture , its waterfalls and its cable car , but then its popularity waned
二三十年来，乌来以山地文化瀑布和缆车曾经盛极一时，后来逐渐没落。
On the other hand , in this decade , many giant private enterprises , which were prosperous in the past , are facing severe crisis in their expansion and business transition . whereas , those who is in healthy development rarely . and , a large number of small and medium enterprises are lurching in their development
但是，近十年来，在快速发展的光环背后，不少发展较早、规模较大的私营企业屡屡在扩张或转型过程中出现严重危机，甚至有些曾经盛极一时的大型私营企业也难逃一劫，能够持续健康发展的大型私营企业风毛麟角。