go through the floorBFCHEAPif a price, amount etc goes through the floor, it becomes very low 〔价格、数量等〕降到很低的水平 OPP go through the roof Share prices have gone through the floor. 股价已经探底。
go through the floor• In the past few years, stock prices have gone through the floor.• Last year, sales went through the floor.
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