(of a course of study, especially at a British university or college 尤指英国大学里的课程 consisting of separate units from which students may choose several 分单元的（由独立单元组成，学生可选修） a modular course 单元课程
(of machines, buildings, etc. 机器、建筑等 consisting of separate parts or units that can be joined together 组合式的；模块化的；标准组件的
Word Originlate 18th cent.: from modern Latin modularis, from Latin modulus ‘measure’, diminutive of modus.