🧩 词语组成解析
[地名] [美国] 珀马
🗣️ 情景例句
What happened?
怎么啦？
The data confirm that this product is safe and effective.
数据证实此种产品安全有效。
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。