Dicalcium
[医] 二钙
🗣️ 情景例句
Would two o'clock be acceptable?
两点钟合适吗？
We never imagined that John would become a doctor.
我们从来没想象约翰将成为一位医生。
Historians have long been puzzled by dots, lines and symbols which have been engraved on walls, bones, and the ivory tusks of mammoths.
长期以来，历史学家一直对雕刻在墙壁上、骨头上、古代长毛象的象牙上的点、线和形形色色的符号感到困惑不解。