quantitative easing
noun [ U ] finance & economics specialized uk/ˌkwɒn.tɪ.tə.tɪv ˈiːz.ɪŋ/ us/ˌkwɑːn.t̬ə.teɪ.t̬ɪv ˈiːz.ɪŋ/
扩大货币发行量，量化宽松
the act of a country's central bank increasing the amount of money in the economy at a time when interest rates are very low as a way of increasing economic growth