touch on / upon sth

touch on / upon sth to mention a particular subject when talking or writing谈及，提及:•The report touches on the relationship between poverty and poor health.报告论及贫穷和不良健康之间的关系。•These issues were touched on in Chapter 2.这些问题在第 2 章中论及。

• hydroxylases
• demonologist
• at full strain
• Vycor
• compact disks
• vulgar fractions
• invigorative
• floor
• bill
• tridactyl
• pulsators
• Leucaltidae
• racemase
• chriso-aristocracies
• Sandage, Allan Rex
• see someone off the premise
• petrol pump
• shuffle the cards
• unfruitfulness
• puberty
• watch guard
• put an embargo on
• choanocyte
• thickskinned
• standardizations
• oxypathia 或 oxypathy
• R.A.F
• offsprings
• do something about sth
• flyby
• Wenlockian
• paper man
• pocket books
• boosterish
• Gl
• ampliation
• off hand
• antiperiodics
• worn to the thread
• intersexual
• lyrebird
• vocationalist
• examine for
• suaveness
• by halves
• have one's feet on the ground
• terminuses
• black granite
• pickpocketing
• populating
• workpiece program
• surface speed
• implicated
• eelgrasses
• spherical astronomy
• wear a hat
• nobler
• hard going
• Bruch's membrane
• telephone receivers
• stock footage
• hardener
• major currencies
• selling races
• bromizing
• differential voltmeter
• law agent
• electrize
• loadstone
• suction dredge
• calcium
• aluminium nitrate
• Francophobes
• preview
• emperor penguins
• vittles
• SPC
• laboratory disease
• philomenas
• wear on one's sleeve
• delegable
• Levit
• pard
• TEM
• highflying
• quaintness
• patriarchalisms
• gyrose
• low-spiritedly
• rafales
• loading density
• Wisconsin general testing apparatus
• designless
• generalized linear models
• grow / drift apart
• valproic acid
• without a trace
• pay one's way
• Department of Transportation
• unusual