甜菜根粉
tooth powder───[轻]牙粉
Algaroth powder───海藻粉
saffron powder───西班牙番红花粉
to powder───粉状
tooth powders───[轻]牙粉
Algaroth powders───海藻粉
Gregory's powder───格雷戈里氏散；复方大黄散（一种药物）
bleaching powder───漂白粉；含氯石灰
Dover's powder───杜佛氏散
