economy drive
noun [ C usually singular ] uk/ɪˈkɒn.ə.mi ˌdraɪv/ us/ɪˈkɑː.nə.mi ˌdraɪv/
勤俭节约
an attempt to save money by spending as little as possible
I don't think we'll be going anywhere expensive - Guy's on an economy drive. 我想，我们不会去任何花钱太多的地方——盖伊正勒紧裤带攒钱呢。