"宣传"在英语中的翻译是 "promotion"。
"Promotion"来自拉丁语的 "promovere"，意思是提升、推广、促销。
例句：
The company is launching a new promotion for their product. (公司正在为他们的产品发起一次新的促销活动。)
He got a promotion and is now the manager of the department. (他得到了晋升，现在是该部门的经理。)
She is in charge of the promotion and marketing of the event. (她负责该活动的宣传和营销。)