科学家们在研究中取得了重大突破。
kēxué jiā mén zài yánjiū zhōng qǔde le zhòngdà tūpò 。
The scientists made a significant breakthrough in their research.
他努力工作，终于突破了这个难关。
tā nǔlì gōngzuò ， zhōngyú tūpò le zhègè nánguān 。
He worked hard and finally broke through this difficult obstacle.
在比赛中，他们成功突破了对方的防守。
zài bǐsài zhōng ， tāmen chénggōng tūpò le duìfāng de fángshǒu 。
In the match, they successfully broke through the opponent's defense.