| 单词 | geological period |
| 释义 | Examples:Cambrian (geological period 545-495m years ago)—寒武 Jurassic (geological period 205-140m years ago)—侏罗纪 Cretaceous (geological period)—白垩世 quaternary (geological period covering the recent ice ages over the last 180,000 years)—第四紀 Ordovician (geological period 495-440m years ago)—奥陶纪 pre-Cambrian, geological period before c. 540m years ago—前寒武纪 Carboniferous (geological period 354-292m years ago)—石炭纪 Cretaceous (geological period 140-65m years ago)—白垩纪 Devonian (geological period 417-354m years ago)—泥盆纪 Holocene (geological period covering approx 12000 years since the last ice age)—全新世 lower Cambrian (geological period approx 530 million years ago)—下寒武 Silurian (geological period 440-417m years ago)—志留纪 Cambrian geological period (545-495m years ago)—寒武纪 Permian (geological period 292-250m years ago)—二迭纪 • 二叠纪 Triassic (geological period 250-205m years ago)—三叠纪 • 三迭纪 Ediacaran period (c. 635-542 million years ago), late phase of pre-Cambrian geological era—埃迪卡拉纪 See also:geological adj —地理 adj period —期 n • 时间 n • 纪 n • 季节 n • 时候 n • 学时 n • 课时 n • 大姨妈 n period n —时 n • 期限 n • 年代 n • 时代 n • 周期 n • 阶段 n • 年头 n • 历时 n geology n —质学 n |
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英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。