时间:2018-12-13 作者:英语课 分类:与美国小学生一起学英文第3册


英语课

   Addition 加法


  Addition is the process of putting numbers together. 加法是把数字放在一起的运算过程。
  Addition is one of the simplest things in math. 加法是数学中最简单的运算之一。
  It is very basic in math as well. 它在数学中也是非常基础的。
  Everybody knows the + sign. 每个人都知道加法符号。
  The + sign is one of the math symbols. 加法符号是一个数学符号。
  + means more in Latin. 加号在拉丁文中是更多的意思。
  When was the + sign first introduced? 加号第一次被引入是什么时候?
  In 1557, one German mathematician 1 introduced the + sign for the first time. 1557年,一位德国数学家第一次引入了加号。

1 mathematician
n.数学家
  • The man with his back to the camera is a mathematician.背对着照相机的人是位数学家。
  • The mathematician analyzed his figures again.这位数学家再次分析研究了他的这些数字。
标签: 小学英语
学英语单词
acetyl groups
automutagen
Banco di Napoli
battistella
biceps jerk
bike-touring
canaridigitoxoside
car sill
Caragana pleiophylla
celerer
chondracris rosea
circumbulbar
coast patrol
complementary ion
contour value
crawlier
cyclic permuted code (cp code)
dalbergia nigras
development of cost accounting
discman
display the cloven foot
double face sledge hammer
estrangers
ever smokers
extrusion by solution
FA/PA (full-arc/partial-arc)
family firms
fan-shaped wedge
fulbrighters
genus abramiss
ha'pence
hawkery
high-speed engine steam wagon
hot editing
Hotchkiss superdip
hygrometric formula
impulse-type telemeter
information satisfiability
insured's employer's address
inter-estuarine
isoviscous state
joints spheroidal
Karlstein
kind of risk insurance coverage
Kryptoperthite
lambiris
livornoes
lotus effect
marston cotton
medium maintenance group
merino wool
metropolitan-area
miaow miaow
molecularized digital computer
momentum balance
morning ptosis
multipermutations
multiple x-y recorder
Nasari
Niedringhausen
No Benefit Clause
oncoretrovirus
Onego
overflow dam
oxygen heterocyclic ring
peaking power
Plagioneurinae
pot-walfish
practice
radiosensitive
rechannelling
reclaiming crane
regulator circuit
relative gravity data
rhinegolds
rotoinversion axis
scarfs
screw cutter
sec-mod
selectmen
Shikohabad
siccitude
sonar operator
sorting by exchanging
Southwark
spectators
sporite
stuff goods
sync tone
Tatishchevo(Novotatishchevskiy)
Telescopium
tempo debole
tendon lenthening
theatre lighting
thermal neutron source
thermallings
titralyzer
trigonocera lucudiventris
tritsch
unexchangeable
water pump shaft gear
zone leveler