introducing ideas and methods that have never been used before 开拓性的；先驱性的；探索性的 pioneering work on infant mortality 婴儿死亡率方面的探索性研究工作 the pioneering days of radio 无线电的初创时期
Oxford Collocations DictionaryPioneering is used with these nouns:- effort
- experiment
- feminism
- …