强制限速
强制限速-
作为一项可能降低海运二氧化碳排放量的措施，欧盟委员会正在考虑对进入欧盟港口的船舶推出一项潜在的强制限速计划。
As one of its potential measures to reduce shipping 's carbon dioxide emissions , the European Commission is contemplating a potential mandatory speed reduction for all ships entering EU ports .
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限制车速容易，但强制司机遵守这些限速规定就难办多了。
Imposing speed restrictions is easy , but forcing motorists to observe them is trickier