Neutron detector
[化] 中子探测器
🧩 词语组成解析
🗣️ 情景例句
It was a pleasant surprise.
那是个惊喜。
Morning, Alice.
早上好，爱丽斯！
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。