isosceles

adj (geometry 几) (of a triangle) having two sides equal in length （指三角形）二等边的, 等腰的. =>illus at triangle 见triangle插图.

isinglass, Islam, Islamic, island, islander, isle, islet, ism, isn't, ISO, isobar, isolate, isolated, isolation, isolation hospital, isolation ward, isolationism, isolationist, isometric, isomorph, isomorphic, isotherm, isotope, issue, issue from, isthmus, it, It goes without saying that, it happens that, it is likely that, it is no use doing..., it is time to do, it never entered one's mind, it seems that, it'd, it'll, it's, it's up to sb. (to do), ita, Italian, Italianate,