1 sentence

1. 那位老教授对待学术事必躬亲，从不马虎应付。

   nà​wèi lǎo jiào​shòu duì​dài xué​shù shì​bì​gōng​qīn, cóng bù mǎ​hu yìng​fu.

   The old professor takes a hands-on approach to his academic work and is never sloppy or perfunctory.

   Source: Dong Chinese Dictionary