adj.三倍的；最高音部的；三重的
v.（使）成三倍
n.三倍；最高音部
Your desk is treble(triple) as big as mine. 你的书桌至少是我的三倍大。
There was a treble knock at the door. 有人在门上敲了三下。
用作动词 (v.)He has treble his income during the last few years. 在过去几年中他的收入已增加了两倍。
Profits in our company have trebled in the last two years. 我们公司的利润在这两年中增长成以前的三倍。
用作名词 (n.)The house is worth treble what they paid for it. 这房子值他们所付价钱的三倍。
He sings treble. 他唱最高音部。
