avarice

他的贪婪让他为了金钱背叛了最好的朋友。

His ___avarice made him betray his best friend for money.

被贪婪驱使，商人往牛奶里掺水后当作优质品出售。

Driven by ___avarice, the merchant watered down the milk and sold it as premium grade.

寓言中，狗因贪心去咬水中倒影的骨头，结果连嘴里的也丢了。

In the fable, the dog's ___avarice cost it the bone when it snapped at its own reflection in the stream.