字形肋

Fish 鱼 Fish live in water and most fish breathe through their gills. 鱼生活在水中,大多数的鱼靠鳃呼吸。 They have fins, scales, eyes and a mouth. 它们有鳍、鳞、眼睛和嘴巴。 They have a body part for hearing. 它们有接

发表于:2018-12-13 / 阅读(64) / 评论(0) 分类 与美国小学生一起学英文第1册

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Fingers are pretty nifty. They let you to grab a latte, type on a keyboard, even pull up your pants. But did you ever wonder: where do fingers come from?

发表于:2018-12-24 / 阅读(67) / 评论(0) 分类 Scientific American(九)月

Fins 鱼鳍 Fish can swim well with their fins in water. 鱼因为有鳍能在水里畅游。 Also, fish cannot move without fins. 相反的,没有鱼鳍,鱼就不能游了。 Do you know that different fish have different shapes of fins? 你知道

发表于:2019-01-10 / 阅读(67) / 评论(0) 分类 与美国小学生一起学英文第6册

Scientists Explore Underwater Volcanoes 科学家探索海底火山 What covers nearly 29 million square kilometers of this planet beneath the sea? The answer is seamounts. Seamounts are mountains, usually volcanoes, that rise up from the sea floor.

发表于:2019-01-12 / 阅读(65) / 评论(0) 分类 2016年VOA慢速英语(十)月

14You are the children of the Lord your God. Do not cut yourselves or shave the front of your heads for the dead, 2for you are a people holy to the Lord your God. Out of all the peoples on the face of the earth, the Lord has chosen you to be his trea

发表于:2019-01-26 / 阅读(73) / 评论(0) 分类 申命记

DNA Testing to Help Sharks Keep Fins In a study in the journal Endangered Species Research, shark fins on sale were shown to be from a specific region in which shark populations have collapsed, evidence that may help change fishing regulations. Cynth

发表于:2019-01-30 / 阅读(140) / 评论(0) 分类 60秒科学
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a necessary evil
akvabit
amonerer
antimonious acid (valentinite)
antimony and potassium tartrate
Arthur Compton
asil
automatic oiling
auxiliary load
axioelectric
bad fussing
Baltra, I.
brown print
cardio-accelerating centra
careening-wharf
Catania, Prov.di
cellular soil
check valve lever
common camas
common-law procedure act
coralline sponge
decocture
Department of Health Education and Welfare
double oscillation
drum pressure
dysdercus fuscomaculatus
early decline
edge resolution
esmark
Filago germanica
furan group
Fusobacterium polymorphum
gajillion
global vibration test
gravity (water) system
haplobiontic
hard soap
hard-to enumerate group
haricot beans
heat removal curve
hellery
heredodegenerative
heteromorphous
horizontal flexure
howfing
hybrid coupled
incombustible conveyor belt
Indian lamb
indirect extrusion
ioduretted
JSU
kospi
Lerik
linsangs
local body
macroplants
mekilwort
men's brief
Minitonas
multibucket trench digger
necrobiosis
nonperturbatively
Oehl's strata
ohl
OneWebDay
Oregon Health and Science University
organic fluorescent paint
overcapitalisation
overlap-extension
phenylethene
pseudoracemic mixed crystal
put someone through a catechism
quadin'
quantum index with fixed weight
quarter blanket
removable component
rhachilla
Salix paraphylicifolia
salt content of crude oil
sampling plans
scaffolding tower
Schwingen
shoe wedge
telex service advice
the European Space Agency
The spirit is willing but the flesh is weak.
thermal fission cross section
three handkerchief
to make a fire
token access control
tower boiler
transconformation
treaty-baseds
tummy-bugs
Tupi-Guaranian
ultra-violet or infra-red ray apparatus
untidying
urbarium
vena ovaricas
ventilation losses
Veshkayma
water supply for construction