我认为每个音乐家都曾在某个时刻经历过怯场。

I think every musician has experienced stage fright ___at ___one ___time ___or ___another.

我们所有人都在某个时候度过一个美妙的假期归来，感到神清气爽、心情愉悦。

We've all returned from a wonderful holiday ___at ___one ___time ___or ___another, feeling refreshed and happy.

在他多变的职业生涯中，他曾在某个时候涉足过新闻、教学，甚至木工。

Throughout his varied career, he has dabbled in journalism, teaching, and even carpentry ___at ___one ___time ___or ___another.