A tax on upstream carbon sources is one easy way to put a price on carbon emissions, although some countries may wish to use other methods, such as emissions trading schemes.
对上游碳资源征税是为碳排放定价的一种简单方法，尽管一些国家可能希望使用其他方法，例如碳排放交易计划。
The White House's unexpected unveiling of a tax on bank liabilities and a ban on proprietary trading did not help matters, complicating discussions at a delicate time.
白宫在此时出人意料的宣布了对银行债务征税和对自营交易的禁令并没有使事情有进展，反而在这个微妙的时刻将谈判进一步复杂化。
That's sending major indexes lower on the final day of trading as investors lock in gains, or sell underperforming stocks to reap a tax benefit.
美国股市三大股市在全年最后一个交易日开盘走低，投资者锁定利润，出售表现不佳的个股，以获取税收优惠。
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