“每月的”造句

汽车司机每月的油量将限定为30升。
Motorists will be rationed to thirty litres of petrol a month.

每月的花费可能增加也可能减少，很难预测。
Monthly costs can rise or fall unpredictably.

他付每月的抵押借款利息有很大的困难.
He's having a lot of trouble paying his mortgage every month.