Definition
To attempt to prevent others from discovering a fact; to maintain secrecy about something.
保密;對…保密
Davies kept quiet about the amount of money being spent.
戴維斯對花費的金額保持沉默。
She managed to keep the operation quiet for a while.
她設法讓這次行動保密了一段時間。
We were told to keep it quiet and not talk about it.
我們被告知要保密,不要談論這件事。