不时,时常;偶尔,间或

学英语单词
air mail transter
aircraft structural part
alloxamide
Amanita verna
ancylite
archecenra
armsaye
baking of brick
ballcaps
bending resistance
bolt lock protection
braidable
Britonto
check coal
cloximate
cock of the roost
colpeo
compasse
cropdusting
cutterhead cross-feed slide
data structure independence
deassed
delta connected stator
desexualize
Diphacine-Na
disconnector switch
displeasurable
doorman
double spearhead
e-fulfilment
end-nuclei
Erythroxylum novogranatense
exceptional visibility
extramelanopsin
extrapolated length
field moisture deficiency
gelfischerite
Genticin
gentleman of the three ins
gless
high-pressure sprayer
hitodesterol
hold a stick to
Hunanese
hypoxophoria
i-swenched
impuring
incisor
interchangeable parts
internal cylindrical honing machine
keyboard monotype
let sth ride
local rod power
lotensin
malleid
missing clock
mobile automatic manure crane
needest
opera-glass hand
output truncated condensation
papilla (pl.papillae)
phildars
pin-tucking
plain knife
polution
posterior gray column of spinal cord
programmable device
pseudo operation
Pteris multifida
pumps
PY-NO2
Ramhurst
rectangulous
reflects upon
ring-roller mill
salt plug
self-damping
silicon intensifier target camera tube
spawn points
standard sample of soil
status display
stoop
superromantic
sworl
syke
technology research
tegmenta
Tenay
the central government
thonged
timing gauge
towermills
tulie
typostasis
ubiquitous mineral
veron
vertigophobia
voluptuously
water gum
water-soldier
waveshape descriptor
xanthellum