groundwork

名词 groundwork:

1. the fundamental assumptions from which something is begun or developed or calculated or explained
   同义词：basis, base, foundation, fundament, cornerstone
2. lowest support of a structure
   同义词：foundation, base, fundament, foot, substructure, understructure
3. preliminary preparation as a basis or foundation

1. Constant practice is the groundwork for success in play the piano.
   要弹得一手好钢琴，经常练习才是根本。
2. The groundwork or source of something.
   基础，根源某事物的基础工作或根源

ground.work

n.（名词）
A foundation; a basis.See Synonyms at base
基础；根本参见 base