如果中国向其高能耗制造业征收碳价格，美国将不必在更大范围内冒更小的风险针对国际贸易机制采取同样的做法，这种机制是中美双方都依赖的。
If China imposes a carbon price for its energy-intensive manufacturing industries, the US won’t need to do so at its border, lowering risks to the international trading system on which both countries rely.