Part 1 字首 表示{方位}的字首 ob- = toward,against 向前，反对
或作obs-, oc-, of-, op-
入门字
oppose (v.)反对
op /pose
against/ place
进阶字
1. obstinate (a.) 顽固的
obs/ tin/ ate
against/ hold/ 形容祠字尾
Don't be so obstinate ------ you know
you're in the wrong!
别那么顽固，你明知是自己不对!
2. obviate (v.) 免除，使不必要
ob/ vi/ ate
against/ way/ 动词字尾
His tendering a resignation has obviate the unpleasant task of firing him.
他自动提出辞呈，免除了我们将他开除的这件苦差事。
3. occident (n.)西方
oc/ cid/ ent
toward/ fall/ 名词字尾
The Occident is geographically opposed to the Orient.
西方和东方是地理上的相反。
4. officiate (v.)主持
of/ fic/ iate
toward/ do/ 动词字尾
The Pope officiated the Christmas mass.
教宗主持耶诞弥撒。