短語(yǔ)詞組短語(yǔ)unconditional buying operation 無(wú)條件公開(kāi)市場(chǎng)買(mǎi)進(jìn)業(yè)務(wù)buying operation under return agreement 附加退廻條件的購(gòu)買(mǎi) 返回 buying operation