英语语法分析

They serve the best traditional Polish pierogi, or Polish dumplings, in Warsaw.

这里的传统波兰饺子是全华沙最好吃的。

There was a Slovakian pierogi master whose last act before leaving for the United States was opening the barn doors to set her animals free;

还有一位制作pierogi（一种类似饺子的半圆馅饼——译注）的斯洛伐克大师，在动身去美国前所做的最后一件事是打开畜栏的大门，将她的动物放生；

Dumplings, , or pierogi - stuffed with either mashed potatoes, cottage cheese or sauerkraut -- are the traditional holiday treat of choice in Poland.

饺子是波兰的传统节日美食，馅料包含土豆泥、农家干酪或者泡菜。