"preach about" in Chinese (Simplified)
宣讲宣扬
Definition
以严肃或道德的方式反复或公开谈论某个主题，尤其是试图说服他人接受你的观点。
Usage Notes (Chinese (Simplified))
常指某人不断用说教或道德方式讨论话题，可能让人觉得烦。常见于健康、伦理、环保等议题。语气可能带有负面色彩，类似“说教”而非中肯建议。
Examples
The teacher likes to preach about good manners in class.
老师喜欢在课堂上**宣讲**礼仪。
My uncle always preaches about saving money.
我叔叔总是**宣讲**存钱的重要性。
She doesn't like it when people preach about eating healthy.
她不喜欢别人总是**宣讲**健康饮食。
Don’t preach about recycling unless you actually do it yourself.
除非你自己真的做，否则别总是**宣扬**回收利用。
He loves to preach about technology, but doesn't know much about it.
他喜欢**宣讲**科技，但其实懂得不多。
People get tired when you constantly preach about your beliefs.
如果你一直**宣讲**自己的信仰，人们会觉得厌烦。