你有私人的牙医吗?或者定期去看牙医吗? 看看今天课程,看看美国人对牙齿健康到底有多重视吧!

Maturity: General
Native: Chinese, Target: English (American)
Hosts: Cynthia, Jason
Function: 龋齿, 牙疼, 牙医

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