这样的话垫料就通常用锯屑铺垫物减少疼痛。
钱是人们交换货物最常用的中介物。
Money is the commonest medium by which people can exchange goods .
低碳水化合物经常用于快速减肥。
Low carbohydrate diets are often designed for fast weight loss.
人们常常用它储物或当做椅子用。
People often used it to store goods or sit on it as a chair.
一种铁的化合物，常用于制作磁芯。
An iron compound frequently used in the construction of magnetic cores.
一种铁的化合物，常用于制作磁芯。
An iron compound frequently used in the construction of magnetic cores.
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