单词	旧货换新
释义	旧货换新 jiùhuòhuànxīntrade in
随便看	reduction of duty reduction of earthquake disasters reduction of edge Reduction of elephantiasis of scrotum reduction of elliptic curve reduction of emission reduction of emissions reduction of endosperm tissue reduction of energy consumption reduction of erection time reduction of excess activated sludge reduction of excess sludge reduction of expenditure reduction of expenditures Reduction of intussusception of intestine reduction of feeding reduction of ferric oxide powder reduction of fiber bundle reduction of fishing vessels reduction of flowing resistance Reduction of food supplies reduction of force system reduction of formaldehyde emission reduction of fraction reduction of fractions to a common denominator