breakthrough /ˈbreikθru:/ n. ［c］突围，突破；（物价的）暴涨，（价值的）骤增；突破点：demonstrate a major technological breakthrough标志着一次重大的技术突破；produce/make a breakthrough in the relations between the two countries 在两国关系方面实行突破［考句］While a full understanding of what causes the disease may be several years away, a breakthrough leading to a successful treatment could come much sooner.尽管要好几年才能知道这个病的病因，但取得治疗上的突破要快得多。