flexibility;elasticity;elastic strength 弹簧失去了～。The spring has lost its elasticity./～工资flexible pay/～工作时间flexible working hours/～就业flexible employment/～条款elastic clause/～需求elastic demand/～外交elastic (or flexible) diplomacy/～务实外交elastic pragmatic diplomacy/～退休年龄flexible retirement age /～工作时间制flexitime/～需求elastic demand/～因素elasticity factor