keep someone posted
US /kiːp ˈsʌm.wʌn ˈpoʊ.stɪd/
UK /kiːp ˈsʌm.wʌn ˈpoʊ.stɪd/

1.
随时告知, 让某人了解最新情况
to regularly give someone the most recent information about something
:
•
Please keep me posted on your progress with the project.
请随时告知我项目进展。
•
I'll keep you posted if anything changes.
如果有什么变化,我会随时通知你。