圆及共轭径法(画椭圆)

The Moon 月球 We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation

发表于:2018-12-05 / 阅读(54) / 评论(0) 分类 有声英文阅读

The Moon We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation shows that the moon is not standing till. Its distance fr

发表于:2018-12-07 / 阅读(25) / 评论(0) 分类 双语有声阅读

Quarter 25分硬币 A quarter is an American or Canadian coin. quarter是指美国或加拿大的一种硬币。 How much is a quarter? 这种硬币值多少钱呢? A quarter is equal to 25 cents. 它等价于25分。 It is worth one fourth of a do

发表于:2018-12-13 / 阅读(33) / 评论(0) 分类 与美国小学生一起学英文第5册

1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way

发表于:2018-12-30 / 阅读(66) / 评论(0) 分类 突破英文词汇

algebra n. 代数 algorithm n. 运算法则 circumference n. 周长 curve n. 曲线 database n. 数据库 decimal adj/n. 十进制 diameter n. 直径 dimension n. 维 equation n. 方程式 facet vt. 刻画平面 geometry n. 几何学 graphic adj. 生动

发表于:2018-12-30 / 阅读(66) / 评论(0) 分类 80天攻克雅思核心词汇

Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗? No, its two ends must meet at two different points on the circle. 不是

发表于:2019-01-10 / 阅读(38) / 评论(0) 分类 与美国小学生一起学英文第9册
学英语单词
1.3-diphosphoglyceric acid
academented
AGP bus
archean eons
Archipiliicae
Arioch
automatinogen
autotranslations
Bagayevskiy
British Dane
brown caterpillar
bytyrinase
calamata
chicken feed
children's rain rubber boot
cicatricial hypertrophy
Curtiss, Glenn Hammond
cytherella pumpkinae
die for taper thread
disburses from fund
DYOH
economically viable
electronic circuitry
emitter-base voltage
Enna, Prov.di
Entopolypoides
farm management funds
florid papillomatosis
four electrode tube
four-axis mounting
Fourier-Bessel series
Fresnel number of resonator
furfurol reaction
geed up
geophone up-hole
goodrow
greyish-bluer
hand-dye
Helleniser
hemans
high-speed relay
hogsten
Iatan
injury of tendons
internal benefits
internal respiration
labyrinthine recess
lamentins
laser fire control system
leved
ligamentum transversalis colli
loan without collateral security
magnoliid dicot family
make or meddle
malekula
marine biotechnology
Mehemmed
Meiact
mocetinostat
mocioun
moisture-free sample
multiple-frame saw mill
nasal spine posterior
new fixed assets
Nolonkonto
non-convertible currency
oilspills
omniselector
open rectangle
outdoor swimming pool
ovulation stage
palaeohydrogeology
parakeratosis psoriasiformis
pertling
plicae epigastrica
PNMR
promiscuousnesses
protoxide of iron
relative valency effect
sai-e
sehcat
slew around
solely foreign-owned enterprise
sorrow and joy
standi
stare sb. in the face
stolen goods
straining post
subsurface stratigraphy
tardy epilepsy
terminal attenuator
Thomson Deep
three point plug
thyroid
transflective LCD
turnover of animal herds
velocity-sedimentation
villaume
visitor-based networking
westing arc welding
William Hogarth
with affected seriousness