名词
中文翻译：Unknown
同义词：
['secret skill', 'secret technique', 'hidden talent']
例句：
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1. The alchemist's secret recipe has been lost to time.
炼金术士的秘密配方已经遗失了。
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2. She possesses a secret skill that few others know.
她拥有一项只有少数人知道的神秘技能。
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3.He used his secret technique to outsmart his opponent.
他运用他的秘技胜过了他的对手。