明枪易躲，暗箭难防

Explanation: Analogy is easy to avoid public attacks, the attacks are difficult to prepare secretly. 　　Usage: Complex sentence; for clause, object; containing derogatory 　　Source: Yuan Anonymous "cow horn": "babe has a good shot to hide the note, stab in the back hard against." 　　Examples: ~, Than jumped into the water, floating out of the strike. (Ming Anonymous "downtown Copper Station") Thesaurus:  Stab difficult to prevent, Good hide out gun