know what one is talking about

know what one is talking about be expert or authoritative on a specified subject 对某个主题是行家, 很在行。

• radiation physics
• turbo
• peg as
• wax lyrical
• grouped data
• zero-bases
• temper-brittleness
• camelotian
• rat sb↔out (to sb)
• oligospermias
• set (或 make) someone free
• closed-minded
• contraceptives
• infinitesimal generator
• pseudocumenes
• overshoot the mark
• lisbons
• kinesitherapies
• tittle-tattler
• reconcilably
• Vaisya
• precedable
• sinopes
• brain trust
• polish the apple
• end-packing
• blue line
• Chelonethida
• floating prices
• starchless
• hard-featured
• press secretary
• follow the banner of
• Converse, Frederick Shepherd
• harewoods
• kingcups
• cavettoes
• basaltic rock
• heavy mineral oil
• unisexed
• financial statement
• thyrotoxic heart disease
• Callon's rule
• multiplier-quotient register
• ferrouranium
• contraventions
• synergistically
• internment
• tundishes
• canonical analysis
• baisa
• wonder at
• rochets
• darktown
• National Enterprise Board
• unforgettable
• shaikh
• showboater
• holddowns
• sensitivity group
• arcuate delta
• levator
• ingenuities
• positivities
• dodged
• panel length
• hydrospheric
• liberation theology
• binocular disparity
• gosling
• year after year / year in, year out
• Vandyke, Sir Anthony
• plashier
• artificial ground
• hobodom
• flesh and blood
• in a breath
• Smith, Joseph
• tariff
• Polyphemic
• present itself
• Mats.
• bawns
• walllike
• differential wind
• stuttered
• bursates
• tekkieh
• Villari reversal
• Rhinochimaeridae
• kishkes
• by itself
• chancellors
• monoculars
• silanized
• balkanises
• salutest
• treasurerships
• tussocker
• Pope Alexander