1. He was married, and that was mandatory. 他结婚了，这是强制性的。
2. I think that mandatory voting is a no-braine and dumb idea. 我认为强制投票这事是一个无脑的，极其愚蠢的想法。
3. An effective and mandatory program sponsored by the high school is the only solution to this serious problem. 由高中主办的的有效的强制性项目是解决这一严重问题的唯一办法。
4. Consider the potential perks of a career in teaching：a pet gerbil in your office, and a mandatory recess every day. 试想一下做老师的潜在特殊待遇：在办公室里养一只沙鼠做宠物，每天享受强制性的休息时间。
5. This raises the need for a global system of checks and balances, for mandatory rules and constraints in our dealings with nature. 这就需要建立一个全球性的检查和制衡体系，在我们与自然打交道时制定强制性的规则和约束。
