Level 6 · word 12,528 of 20,000

breakthrough

/ˈbreɪkˌθruː/ American
  • n. 突破, 突破性进展
Definition
  • n. an important discovery or development that solves a difficult problem
Example
Scientists made a major breakthrough in cancer research this year.
今年,科学家们在癌症研究方面取得了重大突破。