I leave it to my expert colleagues in History of the American West to decide exactly who came up with the term Manifest Destiny, who actually first used it.

我的同事是美国西部史专家,他也许能够,阐述清楚命运天定这个术语是怎么出现的,以及到底是谁第一个用它

耶鲁公开课 - 美国内战与重建课程节选

So we've got an expert in our house with birds.

所以，我们的家里有了一位鸟类专家。

喜欢鸟 - SpeakingMax英语口语达人