life-form

名词 n.
中文释义

英文释义

名词 n.
  1. Alternative form of lifeform. alt-of,alternative
    — The first (oldest) unit of time is the Precambrian Supereon, which covers much of Earth's history from its origins roughly 4.55 bya to 545 mya. Very primitive, one-celled life-forms arose as early as 4.0 bya and near the end of the era (570 mya) the oldest known fossils of multi-celled organisms appear.

词形变化

life-forms plural
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