地里有一些发育不良的小玉米棒，我们只能把它们喂给鸡吃。

There were some small ___nubbins in the field that we could only feed to the chickens.

地毯上还留着几小块口香糖的残余。

There were still a few ___nubbins of chewing gum stuck on the carpet.

她的计划还只是个雏形，需要进一步完善。

Her plan is still just a ___nub and needs further development.