动词
中文翻译：发誓
同义词：
['promise', 'swear', 'vow', 'pledge']
例句：
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1. I swear I'll finish the work before the deadline.
我发誓我会在截止日期前完成这项工作。
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2. He swore to never tell anyone about his secret.
他发誓永远不会告诉任何人他的私事。
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3. She swore that she would never forget him.
她发誓永远不会忘记他。