break intosth
—phrasal verbwithbreakverbuk/breɪk/us/breɪk/broke|broken
tosuddenlybeginto do something
突然开始做…
Hefeltsohappythat hebrokeintosong(=suddenlybegantosing).他高兴得突然唱了起来。
Shewalkedquickly,occasionallybreakinginto arun(=startingtorun).她快步走着，时而跑几步。