的本义是麻醉药品而麻醉药品是不能在市场上公开出售的因此该词常常用来指滞销货
The original meaning of this term is anesthetic drugs, and anesthetic drugs cannot be publicly sold on the market. Therefore, this term is often used to refer to unsold goods
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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