为了安全起见，应该对公路上的车辆限制速度的翻译：For security reasons, restrictions on vehicles on the highway speed 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

For security purposes, should limit the speed of vehicles on the road

For security reasons, restrictions on vehicles on the highway speed

For safety, should to on the road vehicles limit speed

For security reasons, it should be on the highway speed limit on a vehicle

For security reasons, restrictions on vehicles on the highway speed