be banging 或 knocking one's head against a brick wall

be banging 或 knocking one's head against a brick wall be doggedly attempting the impossible and suffering in the process 硬做不可能成功的事; 劳而无功。

• aminohydrolases
• double over/across
• school pence
• packagers
• crystal detector
• penetrology
• kickest
• stirpes
• push and go
• inelastic scattering
• savings account
• defeasibilities
• ami
• l.s.d
• boskopoid
• modeller
• voltaic piles
• be hard pushed for money
• Crateuas
• running boards
• job lot
• ephesianss
• bown
• facsimile signal
• cannon net
• ter
• be pie at
• phaenogam
• hemology.
• Uranus
• conjoiners
• retentives
• belle assemblee
• Panama hat plant
• adjoint of a matrix
• hyperplastic
• streamers
• have some voice in
• Secernentea
• aneroid
• yellowy
• built-ins
• Iranamuck
• sinistr-
• eclaircissements
• sip
• Eucaryotae
• finish grinding
• cater
• they've
• spiteful
• discretes
• f.c.
• bereavement pay
• put on jam
• number off
• full-bloodedness
• grasp the thistle firmly
• guadalajaras
• hologynic
• gastroduodenal
• score a bull's eye
• supplementary benefit
• stab.
• sailboating
• polyunsaturates
• deflationist
• multiplexers
• flying jump
• first-of-may
• sidi
• devitaminized
• in issue
• satem
• make someone's hair stand on end
• depauperize
• tip out
• like the back of a bus
• flatulently
• circular birefringence
• saccharimeters
• gallanilides
• pastures new (或 newer pastures,greener pastures, lusher pastures)
• oxalites
• cognitive sciences
• spinets
• scores of sth
• in love with
• S & L, S and L
• self-consistently
• Pontus Euxinus
• ro.
• horrifyingly
• carbon disulfide
• gain in sth
• solder
• ARRGT
• hydroformer
• Olynthiac
• fortuity