事务 (shìwù) means 'affairs,' 'matters,' or 'business,' referring to tasks, duties, or areas of responsibility. It is a formal term often paired with other words to specify a domain, such as 外交事务 (foreign affairs) or 日常事务 (daily affairs).
这些日常事务交给助理处理就行。
Zhèxiē rìcháng shìwù jiāo gěi zhùlǐ chǔlǐ jiù xíng.
Just leave these routine affairs to the assistant to handle.
他负责公司的法律事务。
Tā fùzé gōngsī de fǎlǜ shìwù.
He is in charge of the company's legal affairs.
处理完手头的事务,我们去吃饭吧。
Chǔlǐ wán shǒutóu de shìwù, wǒmen qù chīfàn ba.
Let's go eat after finishing the tasks at hand.