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
2-iodohexestrol
A.B.F.M.
abohalimas
abyssal regiion
acidimetric standard
after hood
alveolar hypoventilation
antherogenous
averaging pitot tube
Bacillus levans
bilotti
boyle mariotte's law
cardiac glands
central seta
chenevert
clock preset
collision mats
crankshaft web
Crinan
crystal plane vector
curved surface
dalapon(BSI)
dampings
decreasing cost
defernite
dillons
distress commodity
diversion flume
dorsonasal
dry firn
eight hundred
enemion raddeanum regel
Engins
enquirance
equilibrium yield
film hybrids construction
filter policy
fine bagasse
free-electron model of metals
FX,f.x.
gear cou-pling with elastic pins
genus Tussilago
Gordonia kwangsiensis
great plains of north americas
hair-raisers
hard copy interpretation
heekin
in same
Kārūn, Rūd-e
Leave well alone
line, grid
loppel
low-frequency impedance correc tor
Lower Jurassic Series
lycosa phipsoni
marcum q function
mineral tannage
mountain trench
mourn
near-impossible
Noah's Ark
non-drainable superheater
odoratus
osseous tumor
pallet for handling goods
piston ring expander
plc.
Psidium guajava
pumped iron
purchasing office
qara qums
Rafidi
rayon pulp
red-mouthed
reed seat cushion
reflection unit
road-roller
rotenolone
Salix vitellina
small shelly fossil
sole distributor
stave jointing machine
step out on sb
stereoscopic cinematography
stray from the right path
swda
TESL
three-for-two
to retire for the night
tremps
tribenzyl tin hydroxide
trichochrysea okinawana taiwana
Tryplasmatidae
uncoupling chain
unoxygenated
UV Cet star
Vega de Valdetronco
venereologist
vesicular atrifera
wastewater discharge
Weyl group
Zamba