retroflection
音標[retrəu'flekʃən] 讀音漢語翻譯
n. 反曲, 翻轉, 後屈
英文解釋：
名詞 retroflection:
- a turning or tilting backward of an organ or body part同義詞：retroversion, retroflexion
- an articulatory gesture made by turning the tip of the tongue back against the roof of the mouth同義詞：retroflexion
- the act of bending backward同義詞：retroflexion