“强制性”的拼音？

“强制性”的英语可以翻译为：mandatory ...

所有骑摩托车的人都必须戴头盔，这是强制性的。It is compulsory for all motorcyclists to wear helmets.工人董事的任命是不是强制性的?Is the appointment of worker - directors to be mandatory?此事已通过强制性仲裁得到解决.It was settled by compulsory arbitration....