If too thin, cook over medium, stirring, until thickened.

如果太稀了，就中火加热，搅拌，直到变得浓稠。

youdao

Place the saucepan on a stove and cook over medium heat until the water begins to boil.

把平底锅放在炉子上，用中火烧，直到锅里的水沸腾。

youdao

Cook over medium heat 3 to 5 minutes or until eggs are set and bottom is golden brown.

改用中火煲3至5分钟或直到鸡蛋和底部设置是金黄色。

youdao

Cover and cook over medium-low heat for 15 minutes, stirring from time to time, until the pear pieces are softened.

NPR: Perfect Pear Tartlets

Cook over medium heat, stirring occasionally.

NPR: Recipe: 'Inspired by Ingredients'

Add the tomatoes and basil, and cook over a medium heat for 25 minutes, until the sauce thickens.

CNN: Frankie's parmigiana