地理
1.insular adj.海岛的
island n.岛，岛屿，岛状物(孤立状态的物)，安全岛
【例】 coral island n.珊瑚岛;continental island 陆边岛;peninsula n.半岛;islet n.小岛
marine adj.海的(marine);海上的;近海的
【例】 Human beings are natural enemies of marine mammals. 2.maritime adj.海的(marine, oceanic);海上的;近海的 3.moist adj.湿润的，多雨的(damp, humid) 4.ledge n.暗礁
5.oasis n.(沙漠中的)绿洲
【例】 The travelers were saved when they finally found an oasis. 6.tide n.潮汐 7.ebb vi.退潮
【例】 The water washed up on the shore, then slowly ebbed away. 8.continent n.大陆 9.terrestrial adj.
【例】 terrestrial heat 地面干扰;terrestrial magnetism 地磁，地磁学 outskirt n.外边，郊区(surrounding)
region n.地区，领域(zone, area, field, domain) endemic adj.地方的(native)
【例】 This disease is endemic to the southerners, and will not spread in the cold north.
cosmopolitan adj.全世界的(global)
【例】 The farmer was unused to the cosmopolitan ways of life in a large city.
10.subterrane n.地下(underground) subterranean adj.地下的 11.cavern n.大山洞，大洞穴
【例】 Inside the cavern were the remnants of an ancient fire. 12.flaw n.裂隙
13cleft n.裂缝(crevice)
14.crevice n.裂缝，破口(rift, slit)
【例】 The rain came in through a crevice in the cabin wall. gap n.裂口(opening)
【例】 Generation gap lies between parents and children. 15.zone n.带(region, area) 【例】 time zone 时区 16.equator n.赤道
【例】 It is warmer near the equator. 17.longitude n.经度
altitude n.(尤指海拔)高度，高处(海拔甚高的地方) 18.latitude n.纬度
19.meridian n.子午线，正午 20.subsidiary n.支流(branch)
【例】 He followed the subsidiary to trace its origin.
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