If you sign the contract today, you can lock in this low interest rate before it goes any higher.如果你今天签合同，就能在利率上涨之前锁定这个低利率。The low interest rate was little inducement for individuals to save money.低利率难以鼓励个人储蓄。Investors refused to buy the bonds at the low interest rate offered.投资者拒绝购买以低利率开价出售的债券。