It was found on analysis to contain traces of soda.

经分析发现它含少量的苏打。

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The water was found to contain traces of sulphuric acid.

水里发现含有微量硫酸。

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The cake on analysis was found to contain traces of toxin.

经分析发现蛋糕里含有微量的毒素。

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The cake on analysis was found to contain traces of toxin.

经分析发现蛋糕里含有微量的毒素。

www.websaru.net