蠡酌管窥

Explanation: The amount of water with scoop, from the bamboo in the sky. Analogy shallow experience, observation and understanding of things is very one-sided 　　Usage: Joint type; as object, attribute; containing derogatory 　　Source: Song Zhangjun room "Yun Ji Qi signed" the third volume: "Li discretion Glimpse, a As for this." Thesaurus:  Argued look at sth. through a bamboo tube, have a restricted view, Yu Mei eye