翻译　The quarrel originated in rivalry between the two families（引起了两家的不和）.
同义替换　competition n. 竞争 contest n.竞赛，比赛
interfere [??nt??f??(r)] v. 干涉；干预；打扰；妨碍
拆分　inter（在……之间）+ fer（带来）+ e→来到中间→干涉
例句　A new generation of GPS cell phones with tracking software make it easier than ever to follow a child’s every movement via the Internet — without seeming to interfere or hover. 新一代带追踪软件的GPS手机使得通过网络掌握孩子的行踪比任何时候都容易——但看上去又不会像是打扰或监视。