0 New HSK word(s):
0 Old HSK word(s):
古色 [gu3 se4] Patina (S)
铜绿 [tong2 lü4] Patina
铜青 [tong2 qing1] Grünspan ( Kupferacetat, Kupferdiacetat ) (S, Chem)Kupferacetat, Kupferdiacetat, Kupfer(II)-acetat (S, Chem)Patina ( Kupferacetat, Kupferdiacetat ) (S, Chem)