在线词典素昧平生昧:不了解;平生:平素、往常。彼此一向不了解。指与某人从来不认识。拼音sù mèi píng shēng解释昧:不了解;平生:平素、往常。彼此一向不了解。指与某人从来不认识。近义词素不相识、萍水相逢反义词莫逆之交、刎颈之交英文释义(idiom) to have never met sb before; entirely unacquainted