Bisphenoid
(正交晶的或四方晶的)双榍
🗣️ 情景例句
Good morning, Susan.
早安， Susan。
She is the most gracious hostess I have ever known.
她是我所见过的最和蔼的女主人。
When could you make a delivery?
你们什么时候可以交货啊？