牛奶煮沸后会形成一层薄膜。

A thin film forms when ___boiled milk cools down.

她正在锅里煮土豆。

She ___boils the potatoes in a pot.

当听到这个不公平的决定时，他的怒火瞬间爆发了。

When he heard the unfair decision, his anger ___boiled over immediately.

她腿上的疖子又红又肿，疼得厉害。

The ___boil on her leg is red, swollen, and very painful.