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The fossil fuel once burned will react a lot of toxic gas,like sulfur dioxide.这句话哪错了?

分类: 作业答案 • 2021-12-28 15:00:43

问题描述：

The fossil fuel once burned will react a lot of toxic gas,like sulfur dioxide.这句话哪错了?

答

Once the fossil fuel burn, it will react a lot of toxic gas,like sulfur dioxide.