사업은

as for the business

→ 사업
phrase Rare #24,986
as for the business 은 marks 사업 as the topic, often with a sense of contrast.
KO: 사업은 잘돼요?
EN: How is your business going?

발전소 짓는 게 그렇게 단순한 사업은 아닌데 말이죠

Building a power plant isn't exactly a simple undertaking.

— Pandora (2016)

자네 사업은?

How's your business?