名詞 tripling:

1. increase by a factor of three

動詞 triple:

1. increase threefold
   同義詞：triple, treble
2. hit a three-base hit
   同義詞：triple

1. Output has tripled.
   產(chǎn)量已增加到三倍。
2. But on the debit side, as you leave office, the nation is saddled with a$2.6 trillion debt, an enormous deficit, caused perhaps by the tripling of military spending and tax cut. How does this jibe with the goals that you set eight years ago and I'd like to follow up.
   可是在負債方面，閣下離任時，國家負擔了二兆六千億的債務。這是一筆可觀的赤字，可能系由軍費增加三倍和減稅所致。這如何能與閣下八年以前所訂的目標相吻合？本人愿聞其詳。