toughen

翻译：政府逐渐加强了对网约车的管制和处罚。

The government gradually toughened up penalty and control for the Net car.

（参考翻译：The government has gradually toughened regulations and punishments on car-hailing services.）

造句一：在中山市古镇灯光文化节举办期间，政府加强了对晚上道路通行时间的管制。

During the Lighting Culture Festival ，government toughens control for evening road time.

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tough  添加词缀变成动词 toughen，表示“加强”。

make something more strict=toughen

toughen=toughen up

（DUI 是 Driving under the influence 的缩写，就是我们常说的“酒驾”）

toughen 后面常接有关政策（policy）、规章（rule）、惩罚（penalty/punishment）的名词。