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The compound word 鞋鞋 xiěxié / shiieeshye is a word used by infants or their mothers speaking “motherese”: “shoesies”: 你的鞋子在哪裡啊 Nǐ de xiěxié zài nǎlǐ a / Niid shieeshye tzay naalii a? “Where are your shoesies?”

The other duplicated words are less common and not worth noticing.

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