產品滯銷;銷量暴跌
the bottom drops / falls out (of sth)
(某行業)產品滯銷;銷量暴跌
people stop buying or using the products of a particular industry
The bottom has fallen out of the travel market.旅遊市場出現了蕭條局面。
釋義來自《牛津高階英漢雙解詞典》第 9 版