1. in secret : 秘密地;
形容词
名词
1. 秘密的;机密的;保密的
If something is secret, it is known about by only a small number of people, and is not told or shown to anyone else.
1. something that baffles understanding and cannot be explained
e.g. how it got out is a mystery
it remains one of nature's secrets
Synonym: mysteryenigmaclosed book
2. information known only to a special group
e.g. the secret of Cajun cooking
Synonym: arcanum
3. something that should remain hidden from others (especially information that is not to be passed on)
e.g. the combination to the safe was a secret
he tried to keep his drinking a secret