[tū pò]
(打开缺口) break through; make a breakthrough
make a breakthrough at some single point
突破一点
an important breakthrough in cancer
癌症研究上的一项重大突破
break through the enemy's defences
突破敌人的防线
a medical breakthrough
医学上的突破
(打破) surmount; break; top
overfulfil a quota
突破定额
break the back of a tough job
突破难关
breakout; penetration; runout