be at your wits' end

be at your wits' end to be very upset and not know what to do, because you have tried everything possible to solve a problem智穷计尽，束手无策be at your wits' ˈendto be so worried by a problem that you do not know what to do next智穷计尽；全然不知所措

• Jacobson radical
• pond
• get knotted!
• lymph sinuses
• on the bounce
• cash up（或cash something up）
• fraterniser
• extraordinarinesses
• preposed
• Bitt.
• indefensible
• eutectic
• rutherfordiums
• chabliss
• be born under a lucky star
• preachy
• Brachytheciaceae
• drosophilas
• take back one's words
• mowed
• dearth
• -andry
• Bishop's ring
• congruent transformation
• dump routine
• strikebreakers
• usufructuary
• DPMS
• Eindhoven
• tramontanes
• smokejacks
• boatswain's pipes
• differentiators
• odontoblasts
• superior persons
• donator
• nuciform bomb
• thumb one's nose at
• door charge
• leukotomy
• facultative factor
• calcium dihydrogen sulfite
• grit the teeth
• fighting fund
• champing
• Canchas
• winnowers
• gouty
• be up in
• transfer constant
• spiral nebula
• Sperry, Roger Wolcott
• squeeze sth out of/from sb
• blue-sky laws
• power forwards
• set a butterfly
• esthetic
• Ekman spiral
• institutionally
• self-executings
• Aser
• thread guide
• tripton
• jump into bed with
• circle vision
• toolhouse
• chondroclast
• impermeable
• consternating
• disorderlies
• object plane
• phosphocreatines
• exponential series
• convexness
• average delay
• rd
• protonium
• deep palmar arch
• convention
• residual ionization
• operetta
• orthogonalization
• feuilletonist
• foam rubber
• soda-lime
• booers
• sand lily
• the best
• trannie
• archrival
• house martins
• cast a lurid light upon
• keep sth dark
• Judson, Edward Zane Carroll
• ink-cap
• reproductive system
• mathematizes
• vulnerableness
• simply ordered set
• storeship