Unanium fission
[电] 铀分裂
🧩 词语组成解析
[电] 铀
🗣️ 情景例句
When can I photograph a class?
我何时才来上课呢？
How tall?
多高？
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。