洗牙時會先提醒接下來的步驟，讓人不會突然被嚇到
(Translated by Google)
During a teeth cleaning, the next steps will be explained beforehand to avoid startling the user.
洗牙時會先提醒接下來的步驟，讓人不會突然被嚇到
(Translated by Google)
During a teeth cleaning, the next steps will be explained beforehand to avoid startling the user.
