It was no secret that the two men hated each other.
这两个男人相互仇视,这算不得什么秘密。
Don’t worry. Your secret is safe with me (= I won’t tell anyone about it ) .
别担心,我会替你保守秘密。
n. 秘密;秘诀;机密
privacy、
confidence、
mystery、
tips、
stealth
adj. 秘密的;机密的
classified、
underground、
chamber、
inside、
confidential