ㄨㄢˋwànㄓㄤˋzhàngㄍㄠㄌㄡˊgāolóuㄆㄧㄥˊㄉㄧˋpíngdìㄑㄧˇ

万丈高楼平地起
  1. 萬丈高樓平地一層起來比喻一切事物基礎逐漸發展 萬丈高樓平地起不要一步登天」、如此規模通訊產業王國當初萬丈高樓平地起」。

towering buildings are built up from the ground (idiom)​, great oaks from little acorns grow