We will have to keep a tight rein on expenditure in the next few months.我们得严格控制最近几个月的开支。We have to keep a tight rein on expenditure.我们不得不严格控制开支。The finance director keeps a tight rein on spending.财务主管牢牢地控制开支。The government has promised to keep a tight rein on public spending.政府承诺要对公共支出严加控制。