keep in withsb
—phrasal verbwithkeepverbuk/kiːp/us/kiːp/kept|kept
tocontinuetotryto befriendlywith someone,especiallybecause they canhelpyou
（尤指为得到帮助）与（某人）友好相处，不得罪（某人）
I like tokeepin with my ex-employer, you neverknowwhen you might need areference.我愿意同以前的雇主保持良好关系，因为说不定什么时候或许会需要他的推荐信。