名词
1. 基础；根基
The groundwork for something is the early work on it which forms the basis for further work.
1. preliminary preparation as a basis or foundation
e.g. we are prepared today because of groundwork that was done ten years ago
2. lowest support of a structure
e.g. it was built on a base of solid rock
he stood at the foot of the tower
Synonym: foundationbasefundamentfootsubstructureunderstructure
3. the fundamental assumptions from which something is begun or developed or calculated or explained
e.g. the whole argument rested on a basis of conjecture