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- fossil mayflies 蜉蝣昆虫化石
- He found a piece of fossil of an ancient bird. 他发现一块古代鸟类的化石。
- This fossil may be over 2 million years old. 这化石可能超过二百万年了。
- Can you date the fossil exactly? 你能确定这化石的确切年代吗?
- Isn't Professor Bell an old fossil? 贝尔教授真是个老顽固。
- A microscopic fossil, as of a pollen grain or unicellular organism. 微体化石一种微小的化石，如花粉粒或单细胞有机体的化石
- If we squander our fossil fuels, we threaten civilization. 如果我们浪费矿物燃料，我们就威胁文明。
- The gossip tossed the mossy blossom fossil. 爱讲闲话者向上抛长满苔藓的花化石。
- A finite list of choices; our finite fossil fuel reserves. 为数有限的选择; 我们有限的矿物燃料贮量
- The solid matter in which a fossil or crystal is embedded. 基质，脉石嵌有化石或水晶的固体物质
- I have always thought of them as ephemera, like mayflies. 我一直认为他们犹如蜉蝣一般，生活及其短暂。
- Coal is usually referred to as a fossil fuel. 煤通常被称为矿物燃料。
- The fossil may over 2 millon years. 这化石可能超过二百万年了.
- This is a story of fossil culture written by XX. 这是由一个叫XX的人编织的化石文化的故事。
- Archaeologists dated the fossil after much study. 经过认真地研究后,考古学家们最后确定了该化石的年代。
- Fossil remains were found in Java. 残余化石在爪哇发现。
- My grandpa doesn't want to be an old fossil. 我爷爷可不愿做个落伍的人。
- Massive New Dinosaur Fossil Unearthed. 中国发现最大似鸟恐龙化石。
- The fossil may be of two million years old. 这化石可能超过二百万年了。
- Found a piece of fossil of an ancient bird. 他发现一块古代鸟类的化石。
