keep a secret

v.

保守秘密；

Making It Personal: Corporate Rights are Again at Issue as AT&
A Secret. | I Like to Read
A Big Secret | I Have A Secret To Share
How to keep a secret:leakage deterring public-key cryptosystems
Can Banks Still Keep a Secret?: Bankers’ Duties and Data Privacy Principles: Global Trends and Asia-Pacific Comparisons
Three Can Keep a Secret
Never believe the Parson's daughter when she says she'll keep a secret
The girl who couldn't keep a secret : and other stories
The Boy Who Could Keep A Secret
Why I Don’t Keep a Diary or A Secret History of Metamodernism. A Novel