You can also enjoy mudpacks with the natural mud, smooth, grey, soft, and plastic as butter.
你还可以享受天然泥制面膜，灰色的泥，光滑、柔软, 像黄油一样易塑。
《柯林斯英汉双解大词典》
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Mud baths or packs are perhaps the best way to give the skin a good dose of minerals; blend 1/2 cup french green clay with 3/4 cup hot water and mix with a hand blender.