batten on

动词靠…养肥，靠…而兴旺

1. 靠：battels 杂费帐目 | batten on 靠 | batten 板条

2. 靠养肥, 靠而兴旺：batten down the hatches || 封舱 (船只)在暴雨前作好准备 | batten on || 靠养肥, 靠而兴旺 | batten plate || 缀板

1. 靠…成功；靠…发达
    If you say that someone battens on a particular person or thing, you disapprove of the fact that they become successful by forming a close connection with that person or thing.

    e.g. ...a malicious insurance agent who battens on a Melbourne couple after an accident at home.
           利用墨尔本一对夫妇家里发生事故而大捞一笔的狡诈的保险代理人
    e.g. ...the growth of extremist parties, battening on fears about mass immigration and unemployment.
           极端主义党派利用大众对大批外来移民和失业的恐惧而迅速发展壮大