tā / měi / tiān / lìyòng / língsuì / shíjiān / xuéxí / zhēn / yǒu / diǎn / niú / jiǎo / guà / shū / de / jīngshén

他每天利用零碎时间学习，真有点牛角挂书的精神。

He studies every day in his spare moments, showing the spirit of diligent study.