单词	box ditch
释义	box ditch noun : a wooden irrigation flume resting on the ground and used to replace an earthen head ditch Word History Etymology box entry 2
随便看	sulfochlorination sulfocyanate sulfocyanide sulfofication sulfofy sulfohalite sulfon- sulfonal sulfonamide sulfonamides sulfonate sulfonated sulfonated oil sulfonates sulfonating sulfonation sulfonations sulfonator sulfonchloramide sulfone sulfonephthalein sulfones sulfonic sulfonic acid sulfonium

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