11. | The future must always be uncertain . |
| 未来的一切总是难以预卜。
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12. | When I was a teenager, I felt that I was just young and uncertain -- that I was a new boy in a huge school, and I would have been very pleased to be regarded as something so interesting as a problem. |
| 我十几岁时,总感到自己年轻,有些事拿不准 -- 我是一所大学里的一名新生,如果我当时真的被看成像一个问题那样有趣,我会感到很得意的。
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13. | Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tap-water, or untreated water from any other source. |
| 短途旅行到水质不保险的地区时,应避免饮用水龙头的水或未经处理任何其他来源的水。
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14. | The company's future is uncertain . |
| 这家公司前途未卜。
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15. | My dog, whose temper is very uncertain ,often bites judges at dog shows. |
| 我那条狗的脾气捉摸不定,参加狗展时常咬裁判。
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16. | However, the crisis was still in progress and the outcome uncertain . |
| 然而,危机仍在发展,其结果不肯定。
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17. | He skillfully handled the uncertain and highly skittish audience. |
| 他巧妙地掌握住那些摇摆不定、三心二意的听众。
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18. | The issue of the contest is very uncertain . |
| 比赛的结果还很难预料。
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19. | He has an uncertain temper. |
| 他的脾气变化无常。
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20. | uncertain weather |
| 变幻莫测的天气
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