Lūi-pia̍t:Hoân-goân-che

Wikimedia Commons téng ê siong-koan tóng-àn: Reducing agents

Tī lūi-pia̍t "Hoân-goân-che" ê ia̍h

Chit ê lūi-pia̍t kan-taⁿ ū ē-kha chit ia̍h.