Sunshine567
File:Trigonometric_functions.svg|350px|right|thumb|Saⁿ-kak hâm-sò͘: <span style="color:#00A">chèng-hiân</span>, <span style="color:#0A0">û-hiân</span>,... ê ia̍h í-keng kiàn-li̍p
14:40
+1,500
