1918, in a military sense, from break (v.) + through (adv.). The verbal phrase is attested from c. 1400. Meaning "abrupt solution or progress" is from 1930s, on the notion of a successful attack.
实用例句
1. The company looks poised to make a significant breakthrough in China.
这家公司看来很有把握在中国取得重大突破。
来自柯林斯例句
2. They announced, amid much ballyhoo, that they had made a breakthrough.
在一通大吹大擂中，他们宣布自己取得了突破。
来自柯林斯例句
3. This may have been an improvement, but "breakthrough" was an overstatement.
这算得上是一个改进吧，但说是“突破”就言过其实了。
来自柯林斯例句
4. God willing, there will be a breakthrough.
如果一切顺利，将会取得突破性的进展。
来自柯林斯例句
5. Scientists have made a breakthrough in their treatment of that disease.
