na. 背对背
[网络] 背靠背;背对背拥抱;背至背

学英语单词
accounting for equities
agrarian overpopulation
Allomyces
american satellite corporation
amyl nitrite test
Anomala
auxiliary heating surface
bochonpo (pochon-up)
build-up sequence
cavitation bucket chart
celastrol
cloning by expression
common monetary measuring unit
computing
convertible car
Danite
delayed coincidence unit
diabetic process
direct correlations
distributed intelligence microcomputer system
dry expansion evaporator
DSNET
eggbeaters
elliptic cylindrical wave function
epidermolyses
eternal night
few-flowered sedge
fingerpost
first-instar
fishskin disease
fluorescence chromatogram
fog-level
glabellar
gramme-roentgen
granite gneiss
gyrosensors
hapoel
hellula undalis (fabricius)
Heterpstraci
hirudoes
hookworm of dog
horror/mystic
huskings
ill-constructed
inertial space three-axis stabilization
inlet swirl flow dis tortion
jar upon the ear
jute doubler
laevo-rotation
lasithi
layer of discontinuity
Lazistan
morricone
movable inspection ladder
name-board
national remedy
nondisplayable characters
nonequilibrated
noninvert
Nzénzélé
omphalophobia
one-twelfth
phillips-perron unit root test
phosphatidylserines
Phyllostachys bambusoides
Phytoptus gracilis
plasma cell cheilitis
pre-edit
programmable port
prominence of lateral semicircular canal
quantifiableness
randed
rectifier type echo suppressor
Rhachiopagy
ride on someone's coattails
rock and roller
rodia
roller grade
sailcrafts
satirists
semi-automatic double seamer
siderophone
sodium thorium sulfate
stabilize a security
sulci occipitotemporalis
target type
the butcher, the baker, the candlestick-maker
the crux
tree lobsters
Trypure
tsantsas
Tufftride process
turbonit(e)
veratrinize
vertical pin
washer chamfer dimension
water domain
watusied
whitening transformation
witticises
yoginis