adjective🔗Share空前的，史无前例的。 Never before seen, done, or experienced; without precedent."The amount of snow this winter was unprecedented; no one remembers a snowfall this heavy before. "今年冬天的降雪量是空前的，从来没有人记得下过这么大的雪。worldhistoryeventChat with AIVocabulary GamePractice Reading
