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Compounds:
còi huýt huýt còi huýt sáo rít sạch như chùi thổi còi tu huýt tu tu vi vu

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Lernwortschatz:

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汽笛 汽笛 [qìdí] a whistle

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汽 汽 vapor / - / water air vapor
笛 笛 flute / - / bamboo sprout flute

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哨

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