名词
中文翻译：不确定性
同义词：
['doubt', 'uncertainty', 'incertitude']
例句：
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1. Theoutcome of the election is still uncertain.
选举的结果仍然不确定。
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2. He was uncertain about whetherhe would win the race.
他对是否能赢得比赛感到不确定。
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3. The scientist was uncertain aboutthe cause of the disease.
科学家对这种疾病的原因感到不确定。