never failing的用法和樣例：
例句
- I never fail to write to my parents every month.
我每個月一定寫信給我的父母親。 - He is eloquent and humorous as well. What he says never fails to please us.
他口才好又幽默，他所說的一定能使我們高興。 - It's a sight that never fails to thrill me.
那是一種永遠讓我激動不已的景象。 - A good teacher never fails to try his best to answer his students.
一個好老師總是儘力為學生解答。
