[] 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