onrareoccasions是什么意思 rare是什么意思
on rare occasions
难得，不常，偶尔;
双语例句
1
And on those rare occasions when they attempt to create a book, it ’ s filled with what they did, and not what led to their idea in the first place.
当他们难得试图去创作一本书时，书中满是他们做过些什么，压根不是起初给予他们灵感的东西。
2
He even managed to get the last word on one of the rare occasions I wrote about him.
甚至在我少有的一次写到他时，他都写来信表达了他的意见。
