proterozoic
proterozoic英英释义
原生代(的)英释中释n&athe later of two divisions of the Precambrian era, during which the earliest plants and animals are assumed to have lived
proterozoic短语
proterozoic era,元古代；原生代.短语
原生代(的)英释中释n&athe later of two divisions of the Precambrian era, during which the earliest plants and animals are assumed to have lived
proterozoic era,元古代；原生代.短语
