必须

xué xí bì xū kè kǔ zuān yán

学习必须刻苦钻研。

Diligent and intensive study is a fundamental necessity.

bì xū lì xíng jié yuē

必须厉行节约。

It is imperative to practise economy.

fǎ guān bì xū gōng zhèng

法官必须公正。

Impartiality is essential to a judge.

bào kǎo zhě bì xū yǒu běn kē bì yè wén píng

报考者必须有本科毕业文凭。

For applicants, a bachelor's degree is a must.

chéng zū rén bì xū bǎo zhèng fáng chǎn wán hǎo wú sǔn

承租人必须保证房产完好无损。

Tenants are obliged to maintain the property in good condition.

lǐ lùn bì xū lián xì shí jì

理论必须联系实际。

Theory must be integrated with practice.

nǐ bì xū àn shí dào dá nà lǐ

你必须按时到达那里。

You must be there on time.

wǒ men bì xū mǎ shàng chū fā

我们必须马上出发。

We must start at once.