他对学习非常认真。
tā duì xuéxí fēicháng rènzhēn 。
He is very serious about his studies.
请认真听老师的讲解。
qǐng rènzhēn tīng lǎoshī de jiǎngjiě 。
Please take the teacher's explanation seriously.
在工作中,我们应该认真对待每一个任务。
zài gōngzuò zhōng , wǒmen yīnggāi rènzhēn duìdài měi yígè rènwù 。
In work, we should take every task seriously.