不知天高地厚
◎ 不知天高地厚 bù zhī tiāngāo-dìhòu
[have an exaggerated opinion of one's abilities as one who does not know the immensity of heaven and earth] 不了解事物的复杂性。亦形容冒失、幼稚或狂妄自大
成语词典已有该词条:不知天高地厚
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