keep something quiet
US /kiːp ˈsʌmθɪŋ ˈkwaɪət/
UK /kiːp ˈsʌmθɪŋ ˈkwaɪət/

1.
保密, 不声张
to keep something secret or not tell anyone about it
:
•
Can you keep this quiet for a while?
你能保密一段时间吗?
•
We need to keep this quiet until the official announcement.
在正式公布之前,我们需要保密。