Salivolithiasis
涎石病
🗣️ 情景例句
How's your son getting on with his English?
你儿子的英语学得好吗？
Thank you for you cooperation.
谢谢你们的合作。
I like sitting by the Wayle on fine afternoons.
我喜欢在天气晴朗的下午到河边坐坐。