井底之蛙的英文：
[Literal Meaning]
a well/bottom/aux./a toad
a toad at the bottom of a well

[解释]
见识狭窄、目光短浅的人。

[Explanation]
a person with a very limited sight

[例子]
连飞机都没有坐过，还假装自己懂很多，他真是个井底之蛙。

[Example]
He had never taken an airplane, but he pretended to know much about it. What a limited sight!

A frog in a well has a very limited view; the flickering of a glowworm does not shine far.
井底之蛙，所见不大;萤火之光，其亮不远。