boil up
phrasal verbboil up
if a situation or an emotion boils up, it becomes dangerous, makes you worried, etc. （局势、情绪等）进入危急关头，令人担忧
boil something up
to heat a liquid or some food until it boils 把（液体或食物）烧开 She boiled up a large pan of water. 她烧了一大锅水。