preliminary preparation as a basis or foundation; "we are prepared today because of groundwork that was done ten years ago"
lowest support of a structure; "it was built on a base of solid rock"; "he stood at the foot of the tower" 同义词：foundation, base, fundament, foot, substructure, understructure,
the fundamental assumptions from which something is begun or developed or calculated or explained; "the whole argument rested on a basis of conjecture" 同义词：basis, base, foundation, fundament, cornerstone,
例句与用法
1.
This was the groundwork of his oration . 这些就是他那番话的基调。
2.
Once elected, kennedy moved forward swiftly to lay the groundwork for a new african policy . 肯尼迪一当选，就迅速着手为新的非洲政策奠定基础。
3.
With those figures, you'll be laying groundwork for going into the 35th amendment . 您引用了这些数字，再把话题引向第三十五号修正案就有良好的基础了。
4.
Preliminary groundwork for a mobilization of industry had happily been laid before the united states entered the war . 美国参战之前，工业动员的初步基础已经奠定。
5.
By hearty co-operation, the ussr could hasten victory and help lay the groundwork for postwar co-operation . 如果俄国衷心合作，那它是加速取胜，并协同奠立战后合作基础的。
6.
But those fossils and robison's interpretations of them formed the initial groundwork for tracing early human evolution in africa . 但是这些化石以及罗宾逊对它们所作的解释奠定了在非洲追溯早期人类进化的初步基础。
7.
And be impressive . set the groundwork for next year 给评委留下印象，为明年做准备
8.
But a preliminary groundwork must be laid this year 但是今年要打好初步基础。
9.
Reinforce storied building groundwork with concrete grouting 水泥灌浆加固楼房地基
10.
Design and construction of groundwork in the sand layer 砂垫层基础的设计与施工措施
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