例句
	
		- 
			The air crash caused an unprecedented number of deaths.
			这次空难的死亡人数是空前的。
			
		
- 
			an unequalled record of success
			空前的成功纪录
			
		
- 
			Long lines of people had queued up to buy at the unheard-of rate of two bottles of rum for $3.
			人们排起了长队,以空前的速度抢购3美元两瓶的朗姆酒。
			
		
- 
			Mozart was, all , not a mere purveyor of music but the supreme dramatic geniuses all time.
			莫扎特 毕竟 不仅是作曲家,而且是空前的最大戏剧天才之一.
			
		
- 
			Footballers launched an unprecedented crusade against racism on the terraces.
			足球运动员们对阶梯看台上的种族歧视发起了一场空前的运动。
			
		
- 
			This achievement is surely unprecedented.
			这成就确实是空前的.
			
		
- 
			China's industry is developing at an unprecedented rate.
			中国工业正以空前的速度发展.
			
		
- 
			Adam invented love at first sight, one of the greatest laborsaving machine the world ever saw.
			亚当发明了一见钟情, 那是世界空前的一架最伟大的省力机器.
			
		
- 
			Cheap energy, specifically cheap oil, quite literally fueled this record economic expansion.
			廉价的能源, 特别是廉价的石油, 确实促成了空前的经济高涨.
			
		
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			The difficulty also becomes greater. The depth of embedment at the tunnel portal is shallow.
			隧道的长度、断面都是空前的,难度也大于以前.