- 1. 这种物质聚合形成坚硬的塑料。
- The substance polymerizes to form a hard plastic.
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- 2. 他拖着脚走在坚硬的木地板上。
- He shuffled his feet on the hard wooden floor.
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- 3. 牙齿有一层叫做釉质的坚硬表层。
- Teeth have a hard surface layer called enamel.
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- 4. 恐龙湾中的化石嵌在坚硬的砂岩中。
- The fossils at Dinosaur Cove are embedded in hard sandstone.
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- 5. 钻石是已知的最坚硬的矿石。
- Diamonds are the hardest known mineral.
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- 6. 虽然那珊瑚看起来坚硬，它其实非常易碎。
- Although the coral looks hard, it is very delicate.
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- 7. 巴尔马干酪是一个用来描述一类坚硬的意大利奶酪的通用名称。
- Parmesan is a generic term used to describe a family of hard Italian cheeses.
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- 8. 马在坚硬冰冻的路上嘚嘚地跑过。
- The horse clattered along the hard, frozen road.
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- 9. 他的胳膊肘压着什么坚硬的东西。
- His elbow was pressing against some hard substance.
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- 10. 太阳烘烤着泥土，使其变得非常坚硬。
- The sun bakes the mud making it very hard.
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- 11. 我要做的是，我选择一个坚硬的石锤。
- What I do is that I select a hard stone hammer.
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- 12. 我只希望它是真正的岩石，坚硬而坚实。
- I just want it to be a real rock, hard and solid.
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- 13. 脚垫结实，坚硬而厚实。
- The pads are strong, hard and thick.
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- 14. 太阳把大地晒得坚硬。
- The sun baked ground hard.
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- 15. 为了不被坚硬的地板硌着，他把床做厚了一倍。
- To prevent the hard floor from being felt, he made the couch twice as thick.
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- 16. 铁锹撞击到坚硬的东西，他的脊梁骨一阵颤动。
- The spade strikes something hard, sending a shudder through his spine.
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- 17. 我必须想办法把玉米磨成面粉，但岛上的岩石不够坚硬。
- I had to find a way to grind the corn into flour, but the rocks on the island were not hard enough.
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- 18. 她不得不坐在干燥坚硬的地面上，俯视着山谷和周围的一切。
- She had to sit down on the dry, hard ground and look down into the valley and all about her.
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- 19. 如果那只动物受到惊吓，它会用它坚硬的蹄子伤害或杀死我。
- If the animal became frightened, it could hurt or kill me with its hard hooves.
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- 20. 但是仍有一些水会保留下来，完全附着在岩石坚硬的表面上。
- But some will remain, clinging to all solid surfaces.
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- 21. 把本来结实又坚硬的胡萝卜放进开水后，它们便变得又光滑又柔软。
- The strong and hard carrots became soft and weak after they were put into the boiling water.
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- 22. 其中一些表皮很坚硬——就像坚果的外壳——可以提供额外的保护。
- Some of these coats are hard—like the shell of a nut—for extra protection.
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- 23. 许多食肉植物分泌酶以穿透昆虫坚硬的外骨骼，以从猎物体内吸收营养。
- Many carnivorous plants secrete enzymes to penetrate the hard exoskeleton of insects, so they can absorb nutrients from inside their prey.
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- 24. 画必须有坚硬的画架，这样画布才会绷紧，而且颜料不能变质、开裂或变色。
- Paintings must have rigid stretchers so that the canvas will be taut, and the paint must not deteriorate, crack, or discolor.
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- 25. 在这种情况下，骨骼或外壳的原始成分会保留下来，但化石会变得更坚硬、更耐用。
- In such cases, the original composition of the bone or shell remains, but the fossil is made harder and more durable.
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- 26. 实际上，是角蛋白使它们变得富有弹性，并且没有角蛋白的话，它们会变得非常坚硬。
- In fact, it's keratin which makes them flexible and without it they would be very rigid.
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- 27. 罗马人观察到，当火山灰与水混合然后冷却，火山灰变得非常坚硬，几乎不可能分解。
- The Romans observed that, when volcanic ash mixes with water and then cools, it gets extremely hard and almost impossible to break up.
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- 28. 在意大利的埃特纳火山，几百度的高温将这一池炽热的橙色岩浆与坚硬的灰色地壳分开。
- A few hundred degrees separates this pool of fiery orange magma in Italy's Mount Etna from its hardened, gray crust.
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- 29. 在十七世纪和十八世纪，整个遗址被一层坚硬的灰色粘土覆盖，这极大减少了进一步的侵蚀。
- During the seventeenth and eighteenth centuries, the entire site became covered with a layer of hard grey clay, which minimised further erosion.
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- 30. 在十七世纪和十八世纪，整个遗址被一层坚硬的灰色粘土覆盖，这极大减少了进一步的侵蚀。
- During the seventeenth and eighteenth centuries, the entire site became covered with a layer of hard grey clay, which minimised further erosion.
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