HSK 5 · adverb
必
must; certainly; necessarily
开会时必带证件。
Kāihuì shí bì dài zhèngjiàn.
You must bring your papers to the meeting.
考试前必须复习。
Kǎoshì qián bìxū fùxí.
You must review before the exam.
我们必须完成这个工作。
Wǒmen bìxū wánchéng zhège gōngzuò.
We must finish this work.
你不必担心，我很好。
Nǐ búbì dānxīn, wǒ hěn hǎo.
You don't need to worry; I'm fine.