Tā báitiān dāng lǎoshī, wǎnshang xiě xiǎoshuō, shì ge diǎnxíng de xiégàng qīngnián.
She teaches by day and writes novels at night, a typical "slash youth" with more than one career.
Tips
usage
The backslash is 反斜杠. The career sense comes from the slash in self-descriptions like "teacher/writer": 斜杠青年 'slash youth' became a buzzword around 2016 for young people with several careers at once.