stock 
英 [stɒk]  美 
n. 股票，股份；库存；血统；树干；家畜

v. 囤积，备有，进货，办货

adj. 库存的；常备的；【计算机】原生的

例句：
Stocks of ammunition were running low. 

弹药储备即将耗尽。

We took a small stock of alcohol out with us. 

我们拿出一小部分贮存的酒带着。

to the best of my ability with my small stock of knowledge 

就才疏识浅的我能力所及

the stock of accommodation available to be rented 

可供租赁的住房保有量

They sold a week's worth of stock in a single day. 

他们一天就卖光了一周的货。