Meaning: to become more resolute with the passing of time
Original: 双方践行世代友好理念,传统友谊历久弥坚。双方隆重纪念《中俄睦邻友好合作条约》签署20周年,我同普京总统宣布《条约》延期并赋予其新的时代内涵。
Source: 习近平在俄罗斯媒体发表署名文章
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