改任

tā cóng shàng gè yuè kāi shǐ gǎi rèn chē jiān zhǔ rèn

他从上个月开始改任车间主任。

He has been at his new post as workshop superintendent since last month.

tā yǐ gǎi rèn jiào yù bù zhǎng

他已改任教育部长。

He has been at his new post as minister of the Education Department.