HSK 7–9 · pronoun
何
what; which; how; why
你为何这么晚才回家？
Nǐ wèihé zhème wǎn cái huí jiā？
Why did you come home so late?
任何时候都要注意安全。
Rènhé shíhou dōu yào zhùyì ānquán.
Pay attention to safety at all times.
如何提高学习的效率？
Rúhé tígāo xuéxí de xiàolǜ?
How can we improve our study efficiency?
这个菜里没有添加任何东西。
Zhège cài lǐ méiyǒu tiānjiā rènhé dōngxi。
Nothing at all was added to this dish.