本講為2006年下半年新的教學內容，請對照教材、練習冊、語法書聽錄音！
It goes without saying that 不言而喻，理所當然
of course, it goes without saying that youll be paid for the extra hours you work.
for the sake of 為了…之好處；為了…的目的
The company has decided for economys sake to close down this department.
Youre only arguing for the sake of arguing.
