Bisphenoid
(正交晶的或四方晶的)雙榍
??? 情景例句
He has a big sales office in Los Angeles,
他在Los Angeles有一個大的銷售辦事處，
What's your friend's name?
你的朋友叫什么名字？
When several elephants are being trained at one time,
幾只象同時訓練時，