利率已被上限设定在5%。

The interest rate has been ___capped at 5%.

由于费用需要被上限设定以适应学生，我们不能提高它。

Since the fee needs to be ___capped to be suitable for students, we cannot raise it.

政府计划对碳排放设定上限以减少污染。

The government plans to ___cap carbon emissions to reduce pollution.