温 故
A shot in the arm
知 新
once in a Blue Moon
有志提高英文的小伙伴们
千万不要错过 收 听 节 目
Once in a Blue Moon 来自英语环球ChinaPlus 00:00 06:19
Definition: Very rarely
Origin: The 'Blue moon' is supposed to be something that could potentially happen every three years. Before it was considered to be something that is impossible, so it would mean 'never'. However this has changed to mean 'seldom' .
A
I only allow myself to have so called junk food once in a blue moon.
我极偶尔才允许自己吃一次垃圾食品。
B
He admits mistakes once in a blue moon.
他极少承认自己错了。
C
There's nothing wrong with asking for a bit help once in a blue moon.
（最后一句依然留给大家来翻译。）
Language Cafe 由国际台首席英文主播、金话筒奖得主、资深英语教师曼玲与外籍主持人精心挑选地道英文表达，以轻松愉快的聊天形式让听众过耳不失，学以致用。
Carefully picked by Manling, A prime broadcaster for CRI's English service, also a seasoned English teacher, and her native English co-host, these authentic words and expressions are presented to listeners with empowered vocal images. Walk through our show,and they will be yours!
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