Scientists think they are beginning to break through in the fight against cancer.

科学家认为他们在对抗癌症的研究中开始有所突破。

If you have been avoiding the decision-making process, why not break through that barrier right here and now?

如果一直以来你总是想要避开做决策的过程，那为何不此时此刻就突破那个障碍呢？

Protesters tried to break through a police cordon.

抗议者们试图冲破警察的封锁线。

He had finally managed to break through her reserve.

他终于设法战胜了她的矜持。

There is still scope for new writers to break through.

新作家们还有取得成功的空间。