帮帮翻译一下
帮帮翻译一下
煤产量比去年增加三倍
The coal yield compares to increase the triple last year就是这样了。
the production of coal is four times as much as that of last year
煤的产量是去年的四倍
The producation of coal is trice that of last year's.
Coal productive ratio last year increased three times
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