带水拖泥

Explanation: ① difficult to describe the mud line. ② well or not just a metaphor. 　　Source: Song Ye Shi "road Shu" or vice versa, He You drag mud with water; North Korea to the twilight years, less than hit head knock brain. " 　　Examples: Six decades, ~, and this year Xiejun En, put also the hill. Song Liu Chuang ★ "chain solutions Jiazi Birthday" word