史无前例 -------- without precedent in history
例句:
A: Gee,the young swimmer broke three world records.
啊!那个年轻的游泳健将打破了三项世界记录。
B: Great, his distinguished performance is without precedent in history.
他的杰出表现的确是史无前例。
同义词:
unheard of
adj. 卓著的,尊敬的 动词distinguish的过