Definition
To purchase a substantial quantity of something, or to acquire the entire available stock.
大量購買；全部買下
They plan to buy up the new product to meet the upcoming surge in demand.
他們計劃大量購買新產品以滿足即將到來的需求激增。
Investors quickly bought up all the properties on the market, forcing prices to rise.
投資者迅速買下了市場上所有的房產，迫使價格上漲。
The chain store bought up a large quantity of the bestseller to ensure ample stock.
這家連鎖店大量購買了暢銷書，以確保充足的庫存。