/ʌnˈpɹɛsɪdɛntɪd/· adj.
环境/气候/能源B2

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Chinese meaning
史无前例的;空前的
前所未有的
In this story →
指前所未见的极端热浪
Example
As climate change supercharges summers in Hong Kong and across Asia, pregnant women are enduring unprecedented heatwaves
随着气候变化让香港乃至整个亚洲的夏季愈发酷热,孕妇正遭受着前所未有的热浪侵袭。
Source: Earth.org · 16 Jul 2026
Background ✎
报道关注气候变暖下亚洲夏季高温加剧,孕妇是受热浪影响最脆弱的人群之一,临床证据显示高温与流产、早产相关。
Roots · etymology
un- + precedent(先例)+ -ed 构成
- un-(不,无)+ precedent(先例)+ -ed(形容词后缀)
Collocations
- unprecedented heatwave / unprecedented scale / unprecedented crisis
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