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- The current primitive materials about Zheng's voyage were not complete, but we are not short of historical materials.The basic facts of Zheng's navigation are clear. 现存关于郑和航海的原始资料虽然不是很完整，但有关的史料还是不少，郑和航海的基本史实是清楚的。
- Some scientists believe that comets hold the most primitive materials in the solar system and that they played a role in shaping some of the planets, as well as possibly seeding life on Earth. 一些科学家相信彗星拥有太阳系中最早的物质。此外，它们还有可能还在一些星球的形成上扮演了角色。也很可能在地球上播种了生命。
- The material is flawed throughout. 这种材料到处是裂缝。
- His art is primitive and provincial. 他的艺术原始而粗野。
- Primitive people often lived in caves. 原始人常常住在山洞里。
- He insists the condition to use the best material. 他坚持以使用最好的材料为条件。
- That material surpasses all others in fineness. 那种材料精良超过其他所有材料。
- Primitive peoples deified the sun. 原始部落将太阳奉为神。
- The problem is how we are to get the raw material. 问题是我们怎样得到原材料。
- They built a primitive shelter out of tree trunks. 他们用一些树干建造了一个简陋的棚子。
- Jim is going to get material for a new book. 吉姆正打算为一部新书准备材料。
- The storm did a great deal of material damage. 暴风雨造成了大量物质损失。
- Primitive man made tools from sharp stones and animal bones. 原始人用尖石块和动物的骨制造工具。
- A primitive hand-turned grain mill. 手推磨一种原始的手推碾谷磨
- Radioactive ray is material thing. 放射线是实际的物质。
- The presentation of the material was untidy. 所提交的资料缺乏条理。
- The book is about the mythologies of primitive races. 这本书是原始民族神话集。
- He covered the cushion with new material. 他给靠垫蒙上了新的料子。
- Primitive in culture and customs; uncivilized. 野蛮的，未开化的文化和习惯原始的; 不文明的
- Small seashells were often used as a primitive kind of money. 小贝壳常被用作简单的货币。
