a thick mixture of flour, yeast (= a type of fungus that makes bread swell and become light), and water, that is allowed to ferment (= go through a chemical change that causes it to produce bubbles) and then added to dough (= mixture) for making bread, especially French bread

Combine the rough resting dough with the poolish and begin working the dough. 将粗略静置后的面团与波兰酵头混和起来，开始处理面团。

I am a decent bread baker and am accustomed to using starters such as bigas and poolishes. 我是个地道的面包师，习惯用意式酵头和波兰酵头这样的促酵物。