◎ 蠡测 lícè

[measure the sea with an oyster shell—have a shallow understanding of a person or subject;shortsighted] 即蠡酌。以瓠瓢测量海水。比喻见识短浅,以浅见量度人,“以蠡测海”的略语

以蠡测海。——《汉书·东方朔传》

蠡测管窥