stock意思最为广泛，用途最为普及，字面意思跟inventory一样，更为口头化，侧重于经济会计层面的“资金”性质的占用；inventory 更偏重于存货清单之义，是库存被清点后的严格管控，侧重于信息的动态管理。
音标：英 [ˈɪnvəntri] 美 [ˈɪnvəntɔ:ri]
释义：清查;存货清单;财产目录，财产目录的编制;存货总值
1、They're likely to hold big fire sales to liquidate their inventory
他们可能会举行清仓大甩卖。
2、This inventory was known as chrysler's sales bank.
这些存货被称为克莱斯勒公司的销售库。
3、They checked off all the items in the inventory one by one.
他们逐项核对了清单上所列的项目。
4、Send the blueprints along with the inventory.
图纸连同清单一并送去。
音标：英 [stɒk] 美 [stɑ:k]
释义：库存;股份，股票;树干;家畜
1、We have a fast turnover of stock.
我们的货物周转快。
2、That particular model is not currently in stock .
那种型号目前没货。
3、I'm afraid we're temporarily out of stock .
很遗憾，我们暂时脱销了。
4、We don't carry a large stock of pine furniture.
松木家具我们备货不多。