明枪易躲，暗箭难防
míng qiāng yì duǒ，àn jiàn nán fáng
基本释义
  1. 明处来的枪容易躲开，暗中射来的箭难以提防。比喻种种公开的和隐蔽的攻击。
出处
元·无名氏《独角牛》:“孩儿也，一了说明枪好躲，暗箭难防。”
英文翻译
  1. lit. easy to dodge the spear in the open, hard to avoid a stab in the dark (idiom)
  2. it is hard to guard against secret conspiracies