时间:2019-01-10 作者:英语课 分类:与美国小学生一起学英文第2册


英语课

   Human Teeth 人的牙齿


  Teeth are the hardest thing in the human body. 牙齿是人体中最坚固的东西。
  They are not made of bone. 它们不是由骨骼构成的。
  They are made of enamel 1, gum and so on. 而是由牙釉质,牙龈等构成的。
  People use teeth when they eat something or tear something. 人们用牙齿吃东西或撕东西。
  How many teeth do people have?  人有多少颗牙呢?
  When they are young, they have 20 teeth. 小时候,人有20颗牙。
  And when they get older, they have 32 teeth all together. 长大后,人总共有32颗牙。

n.珐琅,搪瓷,瓷釉;(牙齿的)珐琅质
  • I chipped the enamel on my front tooth when I fell over.我跌倒时门牙的珐琅质碰碎了。
  • He collected coloured enamel bowls from Yugoslavia.他藏有来自南斯拉夫的彩色搪瓷碗。
标签: 小学英语
学英语单词
a. perinealis
accrued charge
acoustic magnetic mine
adlecting
administration of internal affairs
Aflogualnum
ai chi
alternative procedure
ampholite
art and part
artificial caving
assidue
base of petroleum
black cottonwood
blue-green bacterium
bursting speed
cascading down
centricdiatom
cloud-bases
complementary scale
consistorial
conventional-arms
counter-cast
Crista sacralis intermedia
Cynwyl Elfed
Daphne holosericea
departmental arrangement and distribution in commodity stock
Direct Copper Blue 2R
disinflations
drip channel
event oriented simulation
eye-serve
factorization method
facular
Fentathienil
flower
geomagnetic periodic variation
go yachting.
group demodulator filter
harpending
hepatitis sequestrans
information management program
initial overburden pressure
insulation varnish
intrapore
inverse beta process
journal box lid hinge
lanatest
light pressure separator
Lothair
megalodiscs
merry-go-round
monoethanolamine(surfactant)
moving current-weighted Passche indexes
neutralizing water tank
new staff
Nihon-maru
non-specified-time relay
nuclear quadrupole spectrum
oil pressure switch
one-cancels-the-other order
orbit maneuver engine
output transfer function
Pare's suture
plain shank
plant hole
poikilosmotic character
preregeneration
progressive wave
pushback
put somebody up to
RCITR
reducing capacity
reductive alkylation
regional index call warrant
RFRNA
Rhodiola wallichiana
Richardson's ground squirrel
rosette phyllotaxy
semi-tractor
sexlessnesses
sgd.
shell tuck
sickling diathesis
simple deterministic language
spaces out
spantik
spread back
sugarcane top
system of gravitational unit
tea-tree
telephone bills
tiled mode
use test
vendibler
vertical decomposition
voltage and frequency response
wear plate
Y ligament
Yang Shiying
zori