[ADJ 形容词]开创性的；创新的；革新的 You use groundbreaking to describe things which you think are significant because they provide new and positive ideas, and influence the way people think about things.
[usu ADJ n]
...his groundbreaking novel on homosexuality.
他关于同性恋题材的开创性小说
...groundbreaking research.
创新研究
Oxford
ground·break·ing/ˈɡraʊndbreɪkɪŋ; NAmEˈɡraʊndbreɪkɪŋ/adjective[only before noun ]making new discoveries; using new methods 开创性的；创新的；革新的◆a groundbreaking piece of research富有开拓性的一项研究ground·break·ing/ˈɡraʊndbreɪkɪŋ; NAmEˈɡraʊndbreɪkɪŋ/