老弱残兵

Explanation: Metaphor for frail elderly and other reasons, the ability to work with poor people. 　　Usage: Partial official; as subject, object; containing derogatory 　　Source: Ming Luo, "Three Kingdoms" 32 back: "city without food, the elderly can be made out of remnants, and the woman down, he will not prepare, I am following the people that in order to soldiers after the attack it." 　　Examples: Previously, he would not grab someone else's trading, especially for those ~; to his body to his car, child seat to fight them, but also have their copies? (Lao She, "Rickshaw Boy" e)