ground plan
noun [ C usually singular ] uk/ˈɡraʊnd ˌplæn/ us/ˈɡraʊnd ˌplæn/
(BUILDING)
（建筑物的）底层平面图
the plan that has been drawn of a building
(ACTION)
mainly US初步计划;大纲
the basic plan of action for something
He doesn't have a ground plan - he just makes decisions as the need arises. 他做事没有计划，只是什么时候需要了才临时作决定。