1. 照......常例：by far ......得多 | by course of ......照......常例 | by reason of 由於

2. 照常规：by correspondence 用写信的办法 | by course of 照常规 | by courtesy of 好意

3. 照...的常例：be on its course (船)航向不变 | by course of 照...的常例 | devour the course [诗](马等)兼程急进, 以极快的速度跑完一段路程

4. 照的常规：by correspondence || 用写信的办法 | by course of || 照的常规 | by courtesy of || 蒙好意