keep something under your hat

含义

to not tell anyone else about something

对某事保密，不告诉别人.

例句

1. 1I'm pregnant, but please keep it under your hat until we've told our parents.
2. 2My sister asked me to keep it under my hat that she's moving to Canada.
3. 3The shop is closing next month, but keep it under your hat until the staff meeting.
4. 4Maria kept it under her hat that she'd been offered the job in Paris.
5. 5Can you keep this under your hat? The wedding date isn't official yet.

语法

只有 keep 变化形式：keeps、keeping、kept。something 是简短的宾语，如 it 或 this；your 要与人称一致。