大家好,“龋齿”俗称蛀牙、虫牙,它是一个被大家经常读错的词。 请注意“龋”的发音!… Please join us first to read this content! / 请先加入我们!Register Already a member? Log in here...
自然而然说中文 Speak Chinese Naturally
没时间或住在国外?你也可以流利说中文! Try this efficient and natural way to speak Chinese like a native speaker even if you are lacking of time or living abroad!