必须 bì xū to have tomustcompulsorynecessarily Example sentences 星期天我必须去学校。 xīngqītiān wǒ bìxū qù xuéxiào. I have to go to school on Sunday 下班以前,我必须完成这项任务。 xiàbān yǐqián, wǒ bìxū wánchéng zhè xiàng rènwu. Before off work, I must finish this mission 如果想要买这个东西就必须努力工作赚钱。 rúguǒ xiǎng yāomǎi zhège dōngxi jiù bìxū nǔlì gōngzuò zhuànqián. If you want to buy this thing you have to work hard to make money 十二月份以前,我必须通过汉语水平考试五级。 shí'èr yuèfèn yǐqián, wǒ bìxū tōngguò hànyǔ shuǐpíng kǎoshì wǔ jí. I must pass the HSK five test before December