村里的老奶奶是位经验丰富的黄油师傅，她手工制作的黄油特别受欢迎。

The elderly woman in the village is an experienced ___buttermaker, and her handmade butter is especially popular.

这台老式黄油机已经用了二十年，但仍然很好用。

This old ___butter churn has been used for twenty years, but it still works well.