fossil polygon古: antiquity; ancientry龟裂: be full of cracks chap龟裂: 1.(土地干裂) (of parched earth) be full of cracks2.(皮肤干裂) (of skin) chap◇龟裂地面 polygonal ground大龟裂: mud cracking冻龟裂: frost polygon; frost-crack polygon下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:古龟裂，即可在微信中查询翻译
