Polyphosphates
(polyphosphate 的复数) 多磷酸盐
🗣️ 情景例句
I can't make sense of it.
这个我弄不明白。
Nothing seek, nothing find.
无所求，则无所获。
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。