build on something
phrasal verb with build verb uk/bɪld/ us/bɪld/ built | built
基于，依赖，以…为基础
to use a success or achievement as a base from which to achieve more success
We must build on our reputation to expand the business. 我们必须依靠信誉来扩展业务。
A good relationship is built on trust. 良好的关系建立在信任的基础上。