an unknown quantity

an ˌunknown ˈquantitya person or thing whose qualities or abilities are not yet known未知数（指尚不清楚，有待证实的人或事物）

• heptaglot
• Ritz-paschen series
• IRMA
• eccentrically
• diazo-
• respice finem
• chantier
• palm civets
• parley
• wear the sword
• Estes
• three-phase circuit
• shokku
• irreplaceable
• honours are even
• malonic ester
• jiggermasts
• high school
• steam chests
• hamantash
• put sb through it
• palm-greasing
• nutburger
• argue sb into (doing sth)
• raphaels
• electrosmosis
• heavy as a bag of as sand
• in that connection
• tricotine
• dual modulation
• gravelish
• roebuck
• coupon
• anorogenic time
• tachiol
• a chip on one's shoulder
• sparged
• druggers
• IADL
• technicoloured
• churn ... out
• iodoacetic acid
• carryall
• pasts
• obvs
• towel gourd
• syringomyelia
• be a great one for (doing) sth
• keylights
• dernier
• tungstic oxide
• ethicizes
• fathom out
• licentious
• uptons
• intnl
• abhor-rently
• do sth at your (own) peril
• Doukhobors
• cut back
• accessory elements
• weak coupling
• airline club
• daub with
• repleading
• antihistaminics
• interference ripple mark
• brisknesses
• intransitive
• girdlecake
• overridingly
• unsafe
• ground controller
• high-level trough
• duarchy
• Harrison, Benjamin
• spooled
• operating lease
• Veterans of Foreign Wars of the United States
• knowledge base
• forced-choices
• noise reduction coefficient
• Descending Aortas
• put on the ritz
• tiering
• calcinosis
• t.s.
• reputability
• entire horse
• courteous
• misexplain
• revenue cutters
• religionisms
• chevalines
• Lincs.
• by a long way
• Lady Bountiful
• Torrenize
• cuttage
• dussertite