Eburnitis
牙釉质密固
🗣️ 情景例句
How about next Saturday?
下周六如何？
I'd rather dream than study my chemistry.
我还是做我的梦，总比研究化学好。
Following his discovery many islanders travelled 3,500 kilometers by sea in their narrow boats to this new country between 1100 and 1350.
继其发现之后，许多岛民于1100年至1350年间驾着他们那窄小的帆船航行3500公里来到这一新的国度。