Read Edit View history 铷 rú rubidium Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 铷/銣 · rú · rubidium 2026/03/04 铷 / 銣 rú rubidium rubidium (chemistry) 铷是一种化学性质活泼的碱金属。 punctuation created sense Mar 4, 2026, 02:25 AM