- 保守秘密
- keep a secret; button up one's lip【法】 conceal* * *button up one's lip; hold out on; keep a secret; keep to oneself* * *bǎo shǒu mì mìn. secrecybǎo shǒu mì mìv. keep secret, keep to oneself, button up one's lip, hold out
Chinese-English dictionary. Academic. 2013.