essential to

essential to

• 对(…是)必不可少的，对(…是)必需的

• leave someone cold(或cool)
• too clever / rich / good etc by half
• it's no use doing sth
• hyperpolarised
• tolling dog
• load-carrying capacity
• technical intelligence
• Thess.
• off one’s head
• ariosos
• lusterer
• Nicholas of Cusa
• seronegatives
• Eurocommunists
• brushless
• forsakenly
• benign neglect
• frowstiness
• dimwitted
• intercedest
• nautiloid
• transgressive deposit
• emptyhanded
• perspired
• line switching
• seat of learning
• affinely
• aircraft propeller
• Hartree-Fock approximation
• end-of-record gap
• protein fibers
• boltest
• grouchiness
• photomultiplier cell
• appealing look / expression / voice etc
• slip between someone's fingers
• busway
• done like a dinner
• discographers
• egghead
• hold one's ground
• saimins
• ganof
• answer to the name of
• liberty hall
• puruloid
• ribbon copy
• overwork
• stalins
• glide bomb
• bluegrasses
• Stillson wrench
• pul
• conglobing
• meteorological balloons
• pseudorabies
• hypophonia
• stand still
• linksman
• the periodic table
• be（或 make）so bold （as to do something）
• compellably
• common bond
• forgetters
• flowers of sulfur
• virus
• radicular
• residence city
• Sarcelles
• ticket-punch
• out of kilter
• Antheil, George
• eosphorite
• wax gourd
• small frog in a big pond
• fathoms
• distance university
• multienzyme complex
• PaD
• use-by date
• slimsy
• post-oak
• laving
• on the up grade
• bowldering
• delirious
• kwh
• pusext.
• seasons
• marriage market
• iodide
• droplines
• energizers
• Lugo
• lippings
• ethyl hydride
• patronyms
• skidding
• methyl palmitate
• situation