癞狗扶不上墙的英文

a mangy cur that won't let itself be helped over a wall; no progress can be made by a good

• 癞:    leprosy favus of t ...
• 狗:    dog
• 扶:    hold up; support w ...
• 不:    a block of wood
• 上:    upper; up; upward
• 墙:    wall