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ammonoid

英[æ'mɒnɔɪd] 美[æ'mɒnɔɪd]
  • n. [古生物]菊石(已灭绝的头足动物)

详细释义

Noun:
  1. one of the coiled chambered fossil shells of extinct mollusks

双语例句

1. After each extinction, a rich variety of ammonoid species and body plans was replaced by a few free-floating types.
在每次物种灭绝之中,大量的菊石和体平面为少量浮游动物所替代。

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2. After each extinction, a rich variety of ammonoid species and body plans was replaced by a few free-floating types.
在每次物种灭绝之中,大量的菊石和体平面为少量浮游动物所替代。

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