Read Edit View history 三角学 sānjiǎoxué trigonometry Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 三角学/三角學 · sānjiǎoxué · trigonometry 2026/03/04 三角学 / 三角學 sānjiǎoxué trigonometry trigonometry 我们这学期开始学习三角学。 noun created sense Mar 4, 2026, 02:25 AM