Close tightly your lips with air in your mouth; then the breath break through your lips and make resonance inside the oral cavity.

  • 发音时,双唇紧闭,口腔蓄气,然后气流冲破双唇阻碍,在口腔发生共鸣而发声。

  • 互联网摘选 2025-01-20 12:00:18

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