形容词
中文翻译：确定的
同义词：
['definite', 'positive例句：1. The results are certain to be disappointing.（结果肯定会让人失望。）']
例句：
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1. The results are certain to be disappointing.
结果肯定会让人失望。
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2. I'm certain that you'll understand.
我确信你会理解。
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3. It is certain that the meeting will take place on time.
会议肯定会按时举行。