Slowly whisk mixture into the milk. Return pan to heat and bring to a boil, stirring constantly. Boil and stir 5 minutes.

将混合物缓慢地加入到牛奶中。回锅加热直到煮沸，在此期间不断搅拌。煮沸并搅拌5分钟。

youdao

In a large saucepan, combine milk, vanilla extract, and 1 tablespoon butter or margarine. Bring to a boil over medium heat, then remove from burner.

在一个大煮锅里，将牛奶、香草香精和1汤勺黄油或人造黄油混合。中火加热，烧开后从炉灶上取下。

youdao

Add tomato puree, salt and 1 cup water; bring to a boil.

加入番茄酱，盐与1杯水，煮至沸腾。

youdao

Bring it to a boil, then immediately reduce the heat to eighty-two degrees.

VOA: special.2010.08.02

Bring to a boil, then reduce the heat, and simmer for about 1 hour or until tender.

NPR: Recipes: 'Vefa's Kitchen'

Bring to a boil and then lower the heat to simmer.

WSJ: A Potent Brew

Put them in a saucepan with lightly salted water to cover, bring to a boil over high heat, reduce the heat to low, and simmer until the leeks are very tender, about 20 minutes.

CNN: Keftes de Prasa (Leek Fritters)