音标:[ˈpleɪˌpenz] ;
n. (供幼儿在内玩耍的)护栏( playpen的复数形式 )
n. a portable enclosure in which babies may be left to play

学英语单词
adras dagi
aerial transport
agricultural insects
Aiken code
air and variations
arabbers
be confronted
bicipital muscle
boat the oars
Branco, I.
Britcosmaco process
burkinshaws
caidwell
capitulars
cardiodysesthesia
Castelsaraceno
chemical engineering design
consolidated manning table
Cranfield fluidics
Craniotome furcata
derivative nationality
Dillon, John Forrest
double-width press
dust preventive
east marks
effective peak acceleration
emergency leave
equitable action
equivalent deviation
fluidic resistor
fluorescent characteristic X-ray
form manager
Francis Palgrave
gundioc
Gustav Hertz
harmonic supercharging
Heidenhain's stain
high quality sales
hurry through
impregnatable
in a sorry plight
interface, bus
internal test facility
International Union of Pure and Applied Physics
inverse magnetooptical effect
iron single block
katzmen
Kelly's sign
Kerenski
kidspeak
loss of head due to enlargement
managed resource
mixing burner
mobile vacuum cleaner
modular flare/chaff dispenser
moisturizers
murn
Ninette de Valois
o'driscoll
off the book payment
optimum-currency area
parmesaned
plant-levels
pneumonic plagues
POW prisoner of war
pPT104
quality control test
quant jock
radio frequency channel
rate of heat flow
re-rendering
read from
real memory
resonance curve
retrodicting
rexines
rotating wire rope
rotenoids
scan-a-graver
scleroiritis
shamateurs
sibling rivalry
skerritt
snowkids
social insurances
sodium boltwoodite
spinboxes
stage of relief
Stiege
stigmatic lens
subconvex
surfiest
test simulator
thermodynamic fluctuations
time base generator (or sweep generator)
uncinus
vapoaural massage
videomakers
visual inspection visually inspect
Wellhausen, Julius
winter-tide
workshirts