expatiate on / upon sth

expatiate on / upon sth formalto speak or write in detail about a particular subject详述，阐述

• subtropical high
• agreeingly
• swathe
• leave no means untried
• dippers
• daylight saving
• bond room
• spell sth↔out
• magnetic well
• aurora borealiss
• maronites
• thother
• invidious
• bounty emigrant
• Hesperides
• corporate concierge
• nucleic
• bangtails
• fourteeners
• hyphen
• unrelieved
• cored structure
• impact bar
• yield strength
• bordures
• solution porosity
• time reversals
• semiquavers
• underpricings
• potlatch
• keyswitch
• pick sb↔up
• isoquinoline
• ticking
• sexualiser
• big laurel
• goa
• downwardly
• partial order
• control system
• false ring
• RCAF
• compound tubular gland
• slantways
• flesh wound
• tag-converting unit
• self-filling
• postal card
• precooked
• cachinnations
• .map
• foul lines
• preventive war
• make a rod for one's own back
• pay attention (to sb / sth)
• sodomist
• deluging
• biotoxins
• put all irons(或 every iron) in the fire
• poised
• sunset industries
• make default
• white mule
• Celestial City
• luxating
• murrhines
• the jewel in the crown
• Hegelianism
• legendizes
• lionized
• chooky
• dynamic symmetry
• organologists
• drivel on
• congregators
• oak gall
• have one's legs
• Ferrara
• capitulas
• zurf
• worst-case
• stroke-bore ratio
• maggot therapy
• face-funguses
• OB association
• genethliadeltiology
• whortleberry
• revivers
• chilopod
• ODs
• spring beam
• paramorphous
• middleweights
• thermostage
• miss one's figure
• from the top drawer
• hantu
• sports jackets
• county borough
• rabblings