只听写英文单词，听完一个单词回车另起一行听写下一个单词，句子和中文不用听写。 Hints：本期21个单词 有3个A开头的单词首字母大写
cavern flaw cleft crevice gap zone equator longitude altitude latitude meridian subsidiary Antarctic Antarctica Arctic coastland hemisphere contour geography horizon lowland
cavern 大山洞 cave 洞 Inside the cavern were the remnants of an ancient fire. flaw 裂隙 The flaw in your theory is that you didn't account for the gravity. cleft 裂缝 crevice crevice 裂缝 破口 rift slit The rain came in through a crevice in the cabin wall. gap 裂口 opening Generation gap lies between parents and children. zone 带 region area time zone时区 equator 赤道 It is warmer near the equator. longitude 经度 altitude (海拔)高度 高处 latitude 纬度 meridian 子午线 正午 subsidiary 支流 branch He followed the subsidiary to trace its origin. Antarctic 南极的 南极地带的 Antarctica 南极洲 Arctic北极的 北极区的 北极 北极圈 coastland 沿海岸地区 hemisphere半球 contour 轮廓 海岸线 outline profile(tour 旅行) The artist accentuated the model's contours. geography 地理学 地理 horizon 地平线 lowland 低地 苏格兰低地 低地的