生意兴隆在英语中可以用 "business is thriving" 来表示。这个短语来源于拉丁语的一句谚语：negotium cum prosperitate，意思是 "business with prosperity"。例句：

Our company's business is thriving thanks to our hardworking employees.

The city's economy is thriving, with many new businesses opening up.

Despite the challenging economic climate, our business is still thriving.