A new accounting system will soon become mandatory for all departments.
It’s mandatory to wear a seat belt in the UK.
The trial judge imposed the mandatory sentence of life imprisonment.
It’s mandatory to wear a seat belt in all states.
英语词典包含67175条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。