Gingival crevice
[醫] 齦縫, 齦下隙
?? 詞語組成解析
a. 齒齦的\\n[醫] 齦的
??? 情景例句
Where do you like to live, in the city or in the country?
你喜歡住在城市還是鄉村？
Let's hope for the best.
讓我們往好處想吧。
About once a month. Not too often, because neither of us has much time. We both have too much work to do.
大約每月一次。不太經常寫信，因為我倆的時間都很緊。我們都有做不完的事。