音标:[ik'stempәrәl] ;
a. 无准备的, 脱口说的
a. Extemporaneous; unpremeditated.

学英语单词
1-dotriacontanol
abort sequence
acceptance for commission
acceptance requirement package
accommodate by accepting time
alleviate poverty and become prosperous
and have done with it
apivore
associated array
bank deposit certificate
Bicordin
bigleaf
bliaut
bowsaws
brachydactylies
bridled bear
bullet proof cloth
calem
casting-out-nines check
check weigher
christobal
clean document
clubfists
collophore
compotator
Costochondrectomy
de gras
deceleratings
deficit-ridden
desmotylia
despooler
fices
folding wedge
frame structure picture
fuel draining plug
glasshouses
gotten on with
haborless ship
Havelland
highway approach
hydrazidase
ieds
inferior nuchal line
inquirent
irregular boundary point
java peppers
Klorpromex
lenticulo-rubro-spinal tract
liogma pectinicornis
little grebe
maximum image area
micrology
micropowered
Milflake
mitrovich
Mobayi-Mbongo
monologuize
nonhydrous
normal set
north marks
obliterate traces of murder
Parasenecio subglaber
pentanizing tower
Physick's operation
plug nozzle
point of hock
polychromophil
pressurization by bypass pipe
prevail against
putting up with
rarf
real out of pocket costs
reasiness
rejection limit
roger's murmur
secondary drying chamber
serveuse
Shamattawa
sitofibrate
ski-bum
sleuce
speechwriters
splanchnonema verruculospora
stable fabric
stonecuttings
Suprasec
telecipher
Thames Navigation Service
trailing hook
tribiofosfor
unallayed
undeveloped water power
vacuum anemomenter
velish
Vombsjon
wafer cleaning
water break
water-water type heat exchanger
white mice
white peak
Yiddish literature
zoli