noun 下载 🔗分享 主板,母板。 The primary circuit board of a personal computer, containing the circuitry for the central processing unit, keyboard, mouse and monitor, together with slots for other devices. Examples : "The technician replaced the old motherboards in the school's computer lab to improve performance. " 技术人员更换了学校电脑实验室里旧的主板,以提高电脑的性能。 electronics computing technology device machine part system 与AI对话词汇游戏阅读练习