但实际上，我们今天所知道的乐器是在20世纪20年代人们出于实用目的造出来、之后持续发展演变而成的。

But really the instrument we know today was the result of a continuing development that started for our practical purposes in the 1920s.

youdao

电影播放技术由最初的“西洋镜”的形式演变而来，直到其发展到一个时期；在这个时期中，影像被投影到幽暗的影院屏幕之上，电影才作为一种大众消费的形式而出现。

The cinema did not emerge as a form of mass consumption until its technology evolved from the initial "peepshow" format to the point where images were projected on a screen in a darkened theater.

youdao

剧情由喜剧慢慢发展成闹剧，最后又演变为悲剧。

The action slips from comedy to melodrama and finally to tragedy.

《柯林斯英汉双解大词典》

There have been fundamental changes through time that make the role of the central bank evolve and change through time.

试图保持系统的稳定,随着时间的发展，基本的改变发生,使得中央银行的角色演变。

耶鲁公开课 - 金融市场课程节选

So, this is a more complex and, sort of, dense example of how that consumer, that push to consume, that consumer sense drives and motivates the novel and plays out in what they see when they are on the road.

这是个更复杂更难懂的例子，它有关那些消费者，怎样推动消费和消费者的意识怎样驱动小说情节发展,及演变出他们在路上看到的各种事物。

耶鲁公开课 - 1945年后的美国小说课程节选