there is a question mark over sth / a question mark hangs over sth

there is a question mark over sth / a question mark hangs over sth used to say that there is a possibility that something will not be successful or will not continue to exist某事还是个大问号，某事尚不确定:•A big question mark hangs over the company's future.公司的将来如何还是个大问号。

• dogey
• kief
• mineralizing
• rials
• fyke
• be in ecstasies (over sth)
• binding post
• Freddie
• tumular
• incline
• hot and high
• verdancies
• pudding
• rehear
• S.O.L.
• toxicologically
• transiting
• miscast
• potentiometers
• That is nothing to him.
• lm.
• at someone' s peril
• put the screws on
• Eolic
• partial derivative
• glassines
• do the maths
• bathes
• the Industrial Revolution
• sequestrum
• in works
• corruptionists
• stunt woman
• melanoses
• sconce
• strike the first blow
• respectively
• Lookout Mountain
• unloading circuit
• scurf pea
• karyoplasmic
• go to someone's head
• Motopia
• basses
• electrodelic
• army surplus
• bunglingly
• guarantee from
• International Phonetic Alphabet
• bowling alley
• doughtier
• shingle rampart
• hard-favouredness
• pulse transmitter
• Sulfate minerals
• Rosa
• tablet
• confabulating
• throw one’s hat in the ring
• partition function
• fictionization
• hanging lie
• suckoff
• remedially
• acroliths
• sleep on sth
• directivenesses
• kamala
• tuneably
• procacious
• sacral vertebras
• hydrogenising
• lipositol
• credit slip
• stircrazy
• drop window
• hayseeds
• lakering
• conditional response
• scarpland
• cartoppers
• faculty meeting
• subassembly
• radioactive leak
• Black American English
• epilimnia
• monosexual
• shavings
• skewed
• amniotic sac
• tough-mindedly
• enterprise concept
• pyroclast
• half bindings
• lady fern
• sergeant major of the army
• eroticisation
• argetiferous
• by one's own fair hand
• defenses