Peridentoclasia
牙周组织溃坏
🗣️ 情景例句
Marketing promotion.
市场推广。
I only regret that I have but one life to give for my country.
我抱憾的是，只有一次生命能献给祖国。
Many people prefer living in the country to living in the town.
许多人喜欢住在农村而不喜欢住在城市。