1
treble (in sth)
She trebles in the church choir.
她在教堂唱诗班唱最高声部。
增至三倍；变为三倍
trebled — past of treble
先理解核心含义，再看它在真实句子里的用法。
增至三倍；变为三倍
to become three times as much or as many, or to make something do this
She trebles in the church choir.
她在教堂唱诗班唱最高声部。
To make a shrill or high-pitched noise.
To utter in a treble key; to whine.
唱女高音；唱高音
sing treble
增加三倍
increase threefold
treble
Base
原形
trebles
3rd person
第三人称单数
trebling
-ing
现在分词
trebled
Past
过去式
trebled
Past participle
过去分词
Their profits treble every year.
他们的利润每年增长两倍。
The population trebled in the last decade.
过去十年人口增长了两倍。
The cost has trebled since last year.
成本自去年以来增长了两倍。
规则动词，意为‘变成三倍’或‘使变成三倍’。
The number of students at the school has trebled in the last five years.
过去五年里，这所学校的学生人数增至原来的三倍。
If we treble the amount of flour, we will have enough dough for three loaves.
如果我们把面粉的用量增至三倍，就会有足够的面团做三条面包。
The company had to treble its production to meet the new demand.
为了满足新的需求，公司不得不把产量增至原来的三倍。
She trebles in the church choir.
她在教堂唱诗班唱最高声部。
注意：中文的「增加三倍」即变为原来的三倍，与英文treble含义一致。
The company trebled its profits last year.
该公司去年利润增加了两倍。
Not this
Our profits made a treble this quarter.
Use this
Our profits trebled this quarter.
treble 是动词，表示‘增至三倍’，不能用作名词。正确用法是直接作谓语。
Not this
We saw a treble increase in sales.
Use this
Sales trebled.
treble 是动词，不能用作形容词修饰名词；表示‘三倍的’应使用 triple。
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价值增至三倍
The old coin has trebled in value over the past decade.
这枚古币的价值在过去十年里增至三倍。
使数量增至三倍
The school hopes to treble the number of students taking science subjects.
这所学校希望将选修科学科目的学生人数增至三倍。
利润增至三倍
Profits trebled in the first year of trading.
营业第一年利润增至三倍。
增至原来的三倍，达到创纪录水平
Energy prices have trebled to record levels in some regions.
一些地区的能源价格增至原来的三倍，达到创纪录水平。
Use trebled naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
treble 的 tre- 像 three（三），可记“三倍”；又像 tremble（发抖），联想高音唱得发抖，帮助记“高音”。
语域：mixed 常见场景：financial reporting、business journalism、formal writing treble 作动词表示“增至原来的三倍”时，多用于较正式的书面场合，比较常见于财经和商业报道；在非正式口语或美式英语中，更常用 triple。具体语境下语体会有变化。
作为动词，treble既可以作及物动词（使增加三倍），也可以作不及物动词（成为三倍）。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY, WORDNET.