她平时很用功,所以考试前并不显得紧张。Tā píngshí hěn yònggōng, suǒyǐ kǎoshì qián bìng bù xiǎnde jǐnzhāng.She is usually very diligent, so she does not seem nervous before exams.
弟弟最近学习很用功,每天都复习到很晚。Dìdi zuìjìn xuéxí hěn yònggōng, měitiān dōu fùxí dào hěn wǎn.My younger brother has been studying very hard lately and reviews until late every day.
只有用功读书,才能取得好成绩。Zhǐyǒu yònggōng dúshū, cáinéng qǔdé hǎo chéngjì.Only by studying hard can you get good grades.