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| 1. | Because of this concentration stress is high and is relieved to a certain extent by elastic deformation |
| 由于接触的这种集中，应力很高，并且因弹性变形而有某些程度的减 |
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| 2. | Dark coloration of the skin, hair, fur, or feathers because of a high concentration of melanin. |
| 黑色素沉着病头发、皮肤、毛皮或羽毛因黑色素沉积而变黑 |
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| 3. | And because the concentration of this ion will remain largely unchanged, biologists do not expect that |
| 这种离子的浓度大致保持不变，所以生物学家并不预期浮游植物会大量增加。 |
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