a rounded knotty depression in the centre of a person's belly caused by the detachment of the umbilical cord after birth; the umbilicus
肚脐;脐。
〈喻〉 中心点
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the Incas saw Cuzco as the navel of the world .印加人把库斯科看做是世界的中心。
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contemplate one's navel spend time complacently considering oneself or one's own interests; concentrate on one issue at the expense of a wider view 冥想,安神养性
"Old English