There was a half of bason of offwhite barnyard grass flour on the chopping board, it looked like arranging for in advance.

案板上放着半脸盆灰白色的稗子面，看来是事先给我准备的。

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White crystal or offwhite powder, undissolving in water or alcohol, dissolving in concentrated sulphuric acid or hydrochloric acid or ammonia or potassium iodide.

白色结晶或灰白色粉末，见光易分解变成棕黄色。不溶于水和乙醇。溶于浓硫酸和盐酸，亦溶于氨水、碘化钾。

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