precedented

基本解释

Okamoto and his team are involved in an un-precedented project to restore Japan's largest coral reef by planting thousands of baby corals growing on tiny ceramic beds.
冈本和他的团队正在进行日本最大的珊瑚礁重建工程，计划用小小的陶器床培养数千只幼小珊瑚以扩充珊瑚礁。

Most of the rest (17) aim at precedented targets, while 3 have unclear mechanisms.
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The effort to ram the treaty through before Christmas is no more justified than it is precedented.
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The key opportunity and challenge will be articulating (and demonstrating) precisely how these immunokinase signaling interventions can differentiate from the existing, precedented approaches.
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