hold/keep/play your cards close to your chest

hold/keep/play your cards close to your ˈchestto keep your ideas, plans, etc. secret守口如瓶；秘而不宣

• love potion
• satisfy oneself
• frequency-response curves
• Bulgar
• police offense
• citophone
• war crime
• bures
• don't call us, we'll call you
• drink the cup of bitterness
• cryochemistry
• Tabulata
• scatter pin
• Menlo Park
• passuses
• archae-
• conjugalities
• load power
• year clock
• aluminiferous
• sequenced
• druther
• purse net
• analog device
• positive transfer
• chaqueta
• shamos
• doctrines
• godets
• alopiidaes
• seculars
• unable
• limpid
• prejudgment
• juristic persons
• Tournai
• Amazon
• horseshoe bat
• sporogonium
• seer
• supermode lasser
• make (或cultivate) the acquaintance of someone
• children of Israel
• videorecord
• biomicroscopy
• Lewis machine gun
• mastectomy
• .cgm
• supernaturalize
• dermonecrotic
• Sabbathlike
• truebred
• xylophonists
• bordure
• octonarian
• predicates
• come straight to the point
• kob
• fa-las
• kipper
• back door
• ostrichist
• trace out
• ducatoon
• W.G.
• one's flesh and blood
• see sb off the premises
• collective securities
• catch an opportunity by the forelock
• death squad
• substandard English
• vaccination encephalitis
• fibre-optic
• a fair crack of the whip
• chop shop
• nucleophilic reagents
• Whittier, John Greenleaf
• critical path
• Molnár, Ference
• Vanuatuans
• be of
• first-name bias
• anthocaulus
• streamway
• underlineation
• wedding breakfasts
• duck soups
• appeases
• isohyetals
• ouabain
• canonized
• misgive
• fetishisticly
• a night out
• billfish
• California orange
• exhaustion delirium
• get-in
• frontager
• Bircher