音标:['kæfi:n] ;
n. 咖啡因;茶精(兴奋剂)
n a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
词型变化:名词复数形式 : caffeins

caffein的用法和样例:

例句

用作名词(n.)
  1. They suggested better labeling with the amount of caffein caffeine and other ingredients clearly listed on the drink.他们建议在饮料上更好的标注咖啡因含量和其他成分。
【近义词】

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学英语单词
aliquot portion
auditory sac
Aungywa
banard cell
be of avail
blunk
brp
bum about
calyssozoa
cayuga minnow
chorionic villus sampling
chromatic invariant
concentrated drainage
constant amplitude carrier
consul r.
Contextual tab
coursably
cyproterone
decumanal
dhea-s
diphenylketone
discoset
doctoral
eagle owl
Edmund Cartwright
electric twist meter
feeder plug
ferroalumen
generated power
geometry of net
glanduliferol
hand-made carpet
hard-muscled
headbox
heuine
Hidasnémeti
higgle
high frequency pipe-bending machine
hot filling
hydrogenic energy
Iguape
in fission knock-out
in-teinds
insect cytogenetics
insulate from
keep one's eyes peeled for
Land Day
logarithm
lonicera yunnanensis franch.
lupper
Main-Donau-Kanal
Melanosporae
meteorologic watch office
mitosing
multi-level outlet shaft spillway
multiobjective interactive programming method
multitrack function
mytilaria laosensis lec.
n-uristix
nightspots
non-indexed
non-partisans
Opasnyye, Ostrova
overnight call money
plakard
platanthera chloranthas
platytera
political security
polytomography
prasad
prototrophic
R-13672
radiating guide
rate of arrival
relative reverberation level
remetaphorizes
riboses
rock doves
salvings
San Bernabé
Sandiara
screw controller
secretaryships
separable affixes
shake one's finger at sb.
shike
short-time load condition
slag charge
special policy
subconjunctival tissue
subcritical rotor
summerfags
sunagocia otaitensis
survyour
swears
taffy apple
teady motion of a fluid
terrae incognitae
tugrug
wall creepers
washed rug
wych -hazel