After several job changes, his career has come full-circle as he returned to the company where he first worked.

full-circle 是由形容词 full（完整的）和名词 circle（圆圈）组成的复合词，字面意思是"完整的圆圈"。 circle 在这里用作比喻，表示"循环、轮回"的概念。 full-circle 作为习语，表示"回到原点、完成一个循环"，常用来描述经历一系列变化后又回到最初状态的情况。