亿年的造句大全
- 造句1：这些岩石是40多亿年前形成的。英 文：The rocks were formed more than 4,000 million years ago.
- 造句2：如果外星人懂得天体物理学，他们可能会自信地预测到，地球这个生物圈将在太阳燃烧并灭亡之后几十亿年之内面临毁灭。英 文：If they understood astrophysics, the aliens could confidently predict that the biosphere would face doom in a few billion years when the sun flares up and dies.
- 造句3：就在一种拥有一亿年历史，称之为硅藻的单细胞植物的外壳里。英 文：It may lie in the shell of a single-celled, 100-million-year-old life form called a diatom.
- 造句4：哦，向导回答道，一个地质学家来过这儿，他告诉我说这些化石有十亿年了，再加上那是整整三年前的事了。英 文：Well, replied the guide, a geologist came by here and told me these bones were one hundred million years old, and that was exactly three years ago.
- 造句5：津巴布韦大堤是一个分层的火成岩，金属镁铁质侵入岩轴承已追溯到大约2.5亿年的历史。英 文：The Great Dyke of Zimbabwe is a layered mafic intrusion of igneous, metal-bearing rock that has been dated to approximately 2.5 billion years old.
- 造句6：这些划分的细胞被称为“真核生物”，它们源于一个共同的祖先，在四十亿年的进化出现只有一次。英 文：These compartmentalised cells are called 'eukaryotic', and they all share a common ancestor that arose just once in four billion years of evolution.
- 造句7：真正意义上的第一个超大陆名叫瓦尔巴拉，它从36亿年前就开始形成了。英 文：The very first supercontinent was called Vaalbara and it started forming more than 3.6 billion years ago.
【亿年】的拼音及解释
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