四兆，读sì zhào，指四种卜兆，一曰方兆，二曰功兆，三曰义兆，四曰弓兆。
他有很多帐单要付，每年将近四兆美金。
He has a lot of bills to pay, almost four trillion dollars' worth every year.
从2000年4月那斯达克指数的泡泡破灭算起，到目前该指数维持在较低数值为止，将近四兆美元的市场财富消失了。
About $4 trillion in market wealth vanished between the April 2000 bursting of the Nasdaq bubble and its recent stabilization at lower levels.
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