the roof of the mouth 上颚
roof of the mouth 口盖 ; 受阻的气流从舌头与上部
Her tongue clove to the roof of her mouth.
她的舌头紧紧地贴着上腭。
《牛津词典》
She clicked her tongue against the roof of her mouth.
她用舌头抵着上腭发出咔哒声。
《柯林斯英汉双解大词典》
You can improve an ice cream headache by rapidly rubbing your tongue across the roof of your mouth to help warm up things.
你可以通过快速地用舌头摩擦上颚来帮助食物变暖，从而缓解吃冰激凌时的头痛。
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