形容词
中文翻译：隐秘的
同义词：
['secretive', 'clandestine', 'furtive例句：1. He was caught by the police for his surreptitious activities.（他因秘密活动被警方抓获。）']
例句：
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1. He was caught by the police for his surreptitious activities.
他因秘密活动被警方抓获。
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2.The secret society was known for its surreptitious meetings.
这个秘密社团以其秘密会议而闻名。
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3. She kept her plans a secret until the right moment to execute them.
她将计划保密，直到执行的最佳时机。