- 管窥蠡测
- guǎnkuī-lícè[take a narrow view of sth; look at the sky through a bamboo tube and measure the sea with a calabash--restricted in vision and shallow in understanding] 管中视天, 以瓢量海水, 喻眼光狭小, 见识不广或不自量力
我昨儿晚上的话竟说错了, 怪不得老爷说我是"管窥蠡测"!--《红楼梦》三十六回
Advanced Chinese dictionary. 2013.