一定要使你的舌头接触下齿的背面。

Make sure that your tongue touches the back of the lower teeth.

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也被称为下颌，下颌的房屋下齿。舌和唇还骑在下颌骨。

Also known as the lower jaw, the mandible houses the lower teeth. The tongue and lower lip also ride on the mandible.

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通过舌面与上齿共同作用强迫气流略过舌面，气流在进入下齿后面时发出声音。

The sound is created by the tongue working with the upper teeth to force air over the surface of the tongue and into the lower teeth.

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