unprecedented 美 [ʌnˈprɛsɪˌdɛntɪd] adj.空前的;前所未有的
英文釋義:
that has never happened, been done or been known before
雙語例句:
This achievement is surely unprecedented.
這成就確實是空前的。
China's industry is developing at an unprecedented rate.
中國工業正以空前的速度發展。
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