treble       
 predeterminer mainly UK uk/ˈtreb.əl/ us/ˈtreb.əl/
 三倍的
three times greater in amount, number, or size
  He earns almost treble the amount that I do. 他挣的钱差不多是我的3倍。 
 Synonym: triple
 treble       
 verb [ I or T ] mainly UK uk/ˈtreb.əl/ us/ˈtreb.əl/
 (使)成三倍
to increase three times in size or amount, or to make something do this
  The price of property has almost trebled in the last ten years. 在过去10年里房地产价格几乎涨了三倍。 
 Synonym: triple
 treble       
 adverb, adjective [ before noun ] mainly UK uk/ˈtreb.əl/ us/ˈtreb.əl/ (US usually soprano)
 (男童声)唱最高声部的(地);(乐器)奏最高声部的(地)
being or relating to a boy's voice that sings the highest notes, or an instrument that plays the highest notes
  He sings treble. 他唱最高声部。 
 a treble voice 高音 
 treble  
noun [ C ] uk/ˈtreb.əl/ us/ˈtreb.əl/
  (SINGER)      
  mainly UK (US usually soprano)童声高音歌手 
a boy with a treble voice
  This part is for a boy treble. 这部分是给男童声高音歌手唱的。 
 Compare: soprano noun 
   (THREE WINS)      
 [ usually singular ] UK (US triple)足球俱乐部在同一赛季中赢得三项桂冠 
an occasion when a football club wins three major competitions in a single season
  Bayern Munich's win over Stuttgart secured a historic treble: the Bundesliga, the European Cup and the German Cup. 拜仁慕尼黑战胜了斯图加特之后成了三冠王:德甲联赛、冠军杯和德国杯冠军。