vt. 不知道或不了解
v. t. To cease to know; to lose the knowledge of.
v. t. To fail of knowing; to be ignorant of.
a. Unknown.

学英语单词
.gd
acetylacetone
Adam.
allasotonic contraction
Alt. dieb.
amount of dispersion
Astn.
automatic data migration
averaging reorder strategy
beg sb to do
blast pipe
bread flour
bromoanilines
carpesia-lactone
case number
cathodophosphoresnc
Charles Nunataks
cheaters never prosper
chromatic coherent
class-e converters
coating antigen
commonwealth
compressed binary format
copper iron
cutting quality
date kernel oil
digital broadcast
distributor open area
drum up something
eidetikers
emergency whistle
EVIDENCE and PROOF
facesaving
fiduciary capacity
flex-cracking inhibitor
fractionator plate number in
gas-filled relay
headas
hemolyzation
high-handicappers
Hofstadterian
hopefulnesses
hot blast cupola
improving on
in quadrature
inland waterway bill of lading
intrusion alarm
iron(iii) arsenite
isotope-separation apparatus
Kennard Corner
kickboxers
Kudryavtsivka
lampropid
laying hens
leppy
leukotomy
low-load adjustment
magnesium fluoride (mgf2)
methyl mandelate
midlength draft
monocephalous
naphthenic crude
national quality product
news-beat
nuttree
over-travel
oxygen-starved
parastratigraphic unit
PCB board
phenyl naphthylamine
Pin Risk
Pirinitramide
pleiade
pool tablet
predeliction
Prince of Wales' feathers
protoaporphine
Qinā
radioisotope gauge
retentively
right-hand tail critical region
rock-a-bye
rollermill top exhaust
sea-cornet
second cranial nerve
secondary employment
sedimantary model of coal
shlocky
sight unseen
special immunity
storm centers
subject breadth
supercompression arrangement
taif (at taif)
take the way
tax levy
The Place Where the Wrongdoing Ship Is Arrested
unduplicated
unlimited flexibility
var. tuberculum auricul?
water segregator
whiskey straight