isthmus

n. 地峡

isle, islet, ism, isn't, ISO, isobar, isolate, isolated, isolation, isolation hospital, isolation ward, isolationism, isolationist, isometric, isomorph, isomorphic, isosceles, isotherm, isotope, issue, issue from, 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, italic, italicize, italicise, italics, Italo-, Italy,