形容词
中文翻译：不确定的
同义词：
['uncertain', 'indeterminate', 'undetermined']
例句：
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1. The outcome of the election remains uncertain until polling day.
选举的结果直到投票日之前都是不确定的。
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2. The weather forecast is unascertained due to the lack of reliable data.
由于缺乏可靠的数据，天气预报是不确定的。
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3. The team's performance was unascertained until they scored their first goal.
直到他们打进第一个球，球队的表现仍然是不确定的。