turn(sb)againstsb/sth
—phrasal verbwithturnverbuk/tɜːn/us/tɝːn/
tostartnot to like oragreewith someone or something, or to make someone do this
（使某人）不喜欢；（使某人）不赞成；（使某人）与…为敌
After sixyearsoffightingpublicopinionhasturnedagainst thewar.经过6年的战争之后，公众舆论开始转向反战。
The girl'snaturalfatherclaimedthat herstepfatherwasturningher against him.女孩的生父声称她的继父在唆使她与自己作对。