Boulder was one of the first cities in the nation to enforce a ban on smoking.

博尔德是该国率先施行禁烟令的城市之一。

Until now, the government has only enforced the ban with regard to American ships.

到目前为止，政府只对美国船只实行了该禁令。

The measures are being enforced by Interior Ministry troops.

这些措施正由内政部的部队实施。

A strict curfew was enforced.

当时实施了严格的宵禁。

They struggled to limit the cost by enforcing a low-tech specification.

他们通过强制实施低技术规格来竭力限制成本。