Health and fitness have become big business.

保健已经成为大生意。

The party has loosened its links with big business.

这个政党与大企业的关系疏远了。

Online dating is big business in the United States.

网上约会在美国是桩大生意。

Most of their economic policies serve the interests of big business.

他们的经济政策多半符合大企业的利益。

Sometimes small firms can outdo big business when it comes to customer care.

在顾客服务方面，有时小企业可能优于大企业。