122.90.85.198
Sîn hong-mien: '''Kán-thú kîm-su̍k''' (鹼土金屬) he chṳ́ chhai ngièn-su chû-khì-péu lî-tú thi 2 chhu̍k ke 8 ke fa-ho̍k ngièn-su, pâu-hàm Beryllium, [[Magnesium]...
03:41
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