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1. | Prices begin to decline. |
| 物价开始下降。 |
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2. | mutation frequency decline |
| 突变率下降 |
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3. | fertility decline |
| 生育率下降 |
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4. | fall heavily or suddenly; decline markedly. |
| 突然很大的下降;明显地下降。 |
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5. | decline of productio |
| 产量下降 |
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6. | water-table decline |
| 地下水面下降 |
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7. | continuing fertility decline |
| 生育率连续下降 |
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8. | pressure decline |
| 压力下降 |
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9. | aging memory decline |
| 衰老性记忆下降 |
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10. | population decline |
| 人口减少;人口下降 |
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