Paradentosis
[醫] 牙周病
??? 情景例句
He is now involved in stocks.
他現在熱衷于股票。
Is it true that manufacturing of automobiles is a major industry?
汽車生產是主要工業是真的嗎？
her flags flying, pennants waving, sails filling in the breeze,
艦旗迎風招展，三角旗隨風飄動，微風鼓起風帆，