tripling

基本解釋

Meanwhile, there's a bigger debate about tuition fees tripling in the future.
同時(shí)，還有一個(gè)關(guān)於未來(lái)大學(xué)學(xué)費(fèi)將上漲三倍的爭(zhēng)論。
But even for nuclear to generate a single wedge would require tripling our current nuclear capacity.
但即使對(duì)於核能來(lái)說(shuō)，形成一個(gè)楔子需要的核電産能是目前的三倍。
If this phenomenon, called "outgassing," were to kick in, it could inundate the atmosphere with carbon dioxide, perhaps doubling or tripling the effect of the past century of human industry.
如果這種被稱爲(wèi)“出氣”的現(xiàn)象開(kāi)始發(fā)揮作用，它可能以二氧化碳淹沒(méi)大氣，也許比過(guò)去一個(gè)世紀(jì)人類工業(yè)的影響還要大一倍或兩倍。

Mr.Wen said trade has soared in modern times, more than tripling between 2004 and last year, when it topped $132 billion.
But they can't deal with a tripling, even more than a doubling of rent.
但他們沒(méi)辦法承受三倍的租金，甚至無(wú)法承受多於兩倍的租金。
紐約的負(fù)麪變化 - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人
He proposed tripling humanitarian aid to Pakistan, but warned military assistance would be cut if Islamabad did not do enough to fight terrorists.

It will compound between now and retirement, but it will fall short of tripling.
FORBES: Why Roth?

Triple means consisting of three things or parts.
If something triples or if you triple it, it becomes three times as large in size or number.
If something is triple the amount or size of another thing, it is three times as large. 3