Boots are a heavy or strong kind of shoes. People who are " too big for their boots" think they are more important than they really are.

靴子是一种沉重结实的鞋子，自负的人想象自己比实际的更重要。

Yet in a country where people have a deep aversion to anyone who appears to be getting too big for their boots, Jansson made enemies wherever he went.

然而，在一个人们对任何妄自尊大者都深恶痛绝的国家，詹森走到哪里都会树敌。