[] an important discovery or development 重大进展；突破◆Intel has achieved a major breakthrough in chip design. 英特尔在芯片设计方面已经取得了重大突破。◆a significant breakthrough in the negotiations 谈判中的重大突破⨁to achieve / make a breakthrough 取得／作出突破性的进展⨁a big / historic / major / significant breakthrough 大的／历史性的／主要的／重大的突破⨁a scientific / technological breakthrough 科学／技术突破