词典释义：
not known or seen or not meant to be known or seen by others
秘密的
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how did you guess I'd got a secret plan? 你怎么猜到我有个秘密计划？
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the resupply effort was probably kept secret from Congress .再补给行动可能是对国会保密的。
[ attrib.]not meant to be known as such by others
秘密的，不想让人知道的
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a secret drinker .秘密酒徒。
fond of or good at keeping things about oneself unknown
善于掩饰自己的
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he can be the most secret man .他可能是最会掩饰自己的人。
something that is kept or meant to be kept unknown or unseen by others
秘密，机密
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a state secret 国家机密
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at first I tried to keep it a secret from my wife .起初我竭力不让我妻子知道此事。
something that is not properly understood; a mystery
令人不解的事；神秘；谜
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I'm not trying to explain the secrets of the universe in this book .在本书中我并不试图解释宇宙的奥秘。
a valid but not commonly known or recognized method of achieving or maintaining something
秘诀；诀窍
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the secret of a happy marriage is compromise .幸福婚姻的秘诀是妥协。
a prayer said by the priest in a low voice after the offertory in a Roman Catholic Mass
（罗马天主教弥撒捐献仪式后牧师的）默祷。
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be in （on ）the secret be among the small number of people who know something 知道内情 -
in secret without others knowing 暗地里，秘密地 -
make no secret of something make something perfectly clear 不隐瞒某事
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keep sth secret 使…保密
真题例句：
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secret garden 秘密花园
真题例句：
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secret code(s) 密码
真题例句：
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the secret to ...的秘密/秘诀
真题例句：
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keep a/the secret 保守秘密
真题例句：
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it's no secret that … …已不是秘密
真题例句：
"late Middle English： from Old French, from Latin
