井底之蛙

井底之蛙（jǐnɡ dǐ zhī wā）a frog in the well 井底下的青蛙只能看见很小的一片天。比喻见识浅陋的人。 A frog in the well can only see little of the sky. A metaphor, a person with a very limited outlook. 如果不认真学习就只能做井底之蛙。 www.imandarinpod.com