only if

ˈonly if(rather formal)used to state the only situation in which sth can happen只有Only if a teacher has given permission is a student allowed to leave the room.学生只有得到老师的许可才能离开教室。Only if the red light comes on is there any danger to employees.只有红灯闪亮时才有危及职工的险情。

• ICF
• dindled
• prostatectomy
• pusher
• archbishop
• the day is doubtful
• theorisation
• iconoclasts
• freight ton
• signalman
• ermine
• well field
• have many irons in the fire
• organic fertilizer
• phantom repeating coil
• telodendria
• brittle
• distco
• diabetologists
• Marsupialias
• descriptive kinship system
• lead chart
• crime club
• scapegoat
• gad around
• settle on/upon
• citation forms
• derealization
• evangelicalness
• studentship
• sirups
• platitudinise
• vertisol
• humanest
• rheostat
• low helix drill
• hedonisms
• resemblant
• pheneticists
• out of the running
• horizontal firing
• research facility
• steam ahead
• swamp maples
• bark grafting
• nephelinites
• hackle fly
• sportswriters
• carbolized
• charquis
• salutatorian
• stuck-up
• pharaoh ants
• Uiguric
• hepatobiliary
• leave sb / sth ↔ out
• roundheads
• on the other side
• get your knickers in a twist
• Antipodeses
• put/throw sb off the scent
• Verlaine, Paul
• Mohist
• electronarcosis
• jetborne
• audio taper
• macaroni wheats
• dimeters
• blue sky bargaining
• fuck sb↔up
• new testaments
• betray the pot to the roses
• be great in small matters
• tartarated
• squab
• very large scale integration
• chronobiologic
• tie clasp
• at one's best
• brachiopodous
• marketing
• magazinist
• petroleums
• one too much for someone
• begrudgers
• stators
• Veronica
• rocker arms
• telomic
• minor groove
• narragansett bays
• break off the habit of
• enameled paper
• ERTS
• bring sb back to sth
• cystine stone
• radiogolds
• soft-pedalled
• facultative aerobes
• portable