长期以来 [chang2 qi1 yi3 lai2]
参考词典中长期以来的常规释义：
基本释义
- ever since a long time ago
参考例句
- 他长期以来一直努力解决该问题.
He has been grappling with the problem for a long time. - 冬眠长期以来一直引起生物学家的兴趣
HiBernation has long intrigued Biologists. - 长期以来这是公认的必需品。
It has long been an acknowledged want. - 她的工作长期以来太不受重视了.
Her work has been too much ignored for too long.
- 他长期以来一直努力解决该问题.
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