【闭门读书】

• 发音: bì mén dú shū
• 解释: 关起门来在家里读书。原意是独自学习，而不与别人切磋。后也用以形容专心埋头苦读。
• 出处: 北齐·颜之推《颜氏家训·勉学》：“盖须切磋相起明也。见闭门读书，师心自是。稠人广坐，谬误差失者多矣。”
• 翻译: 【study behind closed doors; stay indoors at a desk covered with books; shut oneself in behind closed doors and devote oneself to book study】