出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第235页（256字）
比喻一切都准备好了，只差最后一个重要条件，例工厂的全套新设备已装备就绪，现在万事俱备，只欠东风，待电力供应开始便能启动生产。
The new machinery in the factory has been installed and all they are waiting for now is electricity-as soon as that comes，production can start．