、。
She's at work right now.
Literal
She [topic-は] now, work-during is.
仕事中 ('during work, at work') is a tight set form for the state of being on the clock or in the middle of a job. Like 食事中, 会議中, 入浴中, the suffix ~中 turns a verbal noun into a status marker. It's the perfect phrase for office signs, do-not-disturb notices, or status messages: '仕事中につき~' ('since I'm working, please ~').