quantum leap
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌquantum ˈleap (also quantum jump) noun [countable] IMPROVEa very large and important development or improvement 长足进展，飞跃，突飞猛进quantum leap in There has been a quantum leap in the range of the wines sold in the UK. 英国销售的葡萄酒品种数大大增加了。 The treatment of breast cancer has taken a quantum leap forward. 乳腺癌的治疗有了重大突破。
Examples from the Corpus
quantum leap• By placing Franco in overall command, the Nationalists made a quantum leap forward in their efforts to secure victory.• I think that there are two aspects to the question of a quantum leap in nuclear weapons.• The orchestra's performance took a quantum leap forward.• The quantum leap expressed itself partly in population levels.From Longman Business Dictionaryquantum leapˌquantum ˈleap British English, quantum jump American English a very large and important improvementQuantum leaps in information technologies have revolutionized how people work. → leapˌquantum ˈleap nounChineseSyllable
development or very important large and a Corpus Business
quantum leap
ˌquantum ˈleap
(also ˌquantum ˈjump) noun [countable]
a very large and important development or improvement
quantum leap in
There has been a quantum leap in the range of the wines sold in the UK.
The treatment of breast cancer has taken a quantum leap forward.
ˌquantum ˈleap
(also ˌquantum ˈjump) noun [countable]a very large and important development or improvement
quantum leap in