confine 侧重施加不可逾越的限制，有时暗示束缚、囚禁。
restrict 指把某人或物限制在一定范围之内。
limit的例句：
1. In some cases there is a mini-mum age limit.
有些情况下有最低年龄限制。
2. They struggled to limit the cost by enforcing a low-tech specification.
他们通过实施低技术规格拼命限制成本。
3. The three month time limit will be up in mid-June.
3个月的限期截至6月中旬。
4. He was nearly three times over the drink drive limit.
他超过醉酒驾驶规定标准快三倍了。
5. A speed limit of 30 mph was introduced in built-up areas.
在建筑密集区域，车速限制为每小时30英里。
6. I think there is an age limit, but I'd have to check.
我觉得有年龄限制，不过我得去核实一下。
7. He was found to be three times over the limit.
他血液中的`酒精浓度是允许极限的3倍。