音标:['saɪfə] ;
n. [数] 零;零的记号;密码索引书
vi. 计算
vt. 计算;用密码书写
n. a mathematical element that when added to another number yields the same number
n. a quantity of no importance
n. a person of no influence

学英语单词
access-panel
adrenogenital
aerosolsonde
Akaike information criterion
aleurites cordata r.br.
ampullar abortion
ansclasimeter
arteria collateralis ulnaris superior
bacchia rosacea
balanced-to-ground
basement relief
batrachian
becover
bergner
Bhutani
biological behavior
boom hoisting speed
boundary-layer
bubblegum for the mind
bymodered
calculate on sth
calorific value of fuel
carmagnole (france)
churches of england
circle ladder
civil-liberty
clearing expense
compound constant
computicket
connecting circuit
delight oneself with
demergers
Diastomyely
diastrophic plateau
direct indexing
donovanosis
dysploid
easy walkers
ekpe
emelyn
Englishifying
factor of safety (f/s)
family reunion
fax to email
first-run hour
foodyr
fossa malleoli fibul?
fulvate
getting on with
heisenberg
holm tree
house lateral
hypercyanotic angina
hypoptyalism
in benefits
interfemoral
interseam sediment
Jogyesa
kitkats
kraft board
labarde
linguistic typology
lunch-bucket
magnesium aluminum glycinate
magnitude of class interval
may whistle for it
McDonough
mediation responses
medicinal usher
melt pulling
Messalianism
Moehringta
molar mass
nonhospital
nth derived function
nucleophosphatases
o. m.
one-way connection
operationalism
pear-shaped pupil
Percogesic
pipethanate
porology
public accounting profession
querculane
shruggish
sodium iridichloride
spiral rule
sportfull
submucosal implant
subsumptive
sudeleys
teleseismic arrival
tinkerers
total curvature
track-work
train-jumper
trichromatic theory of colour vision
unfriendfully
untimbered rill method
weather interpretation
zinc magnesium galvanizing alloy