薄层砂岩

The rock called sandstone is made up of a great many grains of sand. The beating of the rain on this rock washes the grains apart, and so the hard sandstone slowly changes into loose sand. 砂岩主要由大量沙粒组成。当雨水打下来的时候

发表于:2018-12-07 / 阅读(93) / 评论(0) 分类 英国学生科学读本

The Strange and Beautiful World of Arches National Park 犹他州拱门国家公园:奇怪而美丽的世界 This week on our national parks journey, we travel to Utah. The western state is home to several of the most popular national parks in Americ

发表于:2018-12-16 / 阅读(151) / 评论(0) 分类 2016年VOA慢速英语(十)月

文本: Finally, a fish breaks for cover. It's what the sea lions have been waiting for. Crevices in the reef might seem to offer shelter. But that's no problem for the sea lions, who simply scare them out with bubbles. With the sea lions distracte

发表于:2019-01-21 / 阅读(102) / 评论(0) 分类 跟着英剧练发音

Lesson 50 Only A Stone 第50课 只是一块石头 What is the oldest thing you have seen? One boy thinks it is a church, for he has seen a date on one which tells that it was built hundreds of years ago. 小朋友,你见过的最古老的东西是什

发表于:2019-02-13 / 阅读(108) / 评论(0) 分类 英国学生科学读本
学英语单词
2-bromo-5-nitro-p-toluidine
ADCON
affusing
amen curlers
atazanavir
Ball's point
ben kingsley
bond test of coating
brancher glycogen storage disease
broading
bromated
camermante
capacity calculation
capital of Montana
categorisations
chromatid tetrad
churn ... out
cockalorums
common fault
compensated pyrheliometer
computational processor
DEC (distance echo correction)
degag? en tournant
dilophotis atricollis
dozens of
draw dun out from the mire
ethacrynate
fiberglassed
forward edge of battle area
full cost system
fungusproof material
glycerin tribenzoate
Gotimycin
grimsley
gulphe
heat transmission coefficient
hematoxylin-eosin-azure
heptaglyme
industrial light
innsbrucks
International Maritime Pilots association
intrabasinal rock
inventory rating
ionospheric tide
Jacobinism
kc-lo
Khuabem
krokidolite
laughing-stocks
lie heavy at someone's heart
light-activated switch
local police
lophiodes endoi
low-water-loss cement
Maloyaroslavetskiy Rayon
mercury alloy
mercury teleswitch
misaiming
molar concentration
mosess
Mouse I.
munida crassa
nervi cerebrales
non vult contendere
non-slip point
ootype
overbleached
oxytropis ochrantha turca
phosphoro-imidate
picture geometry fault
Polygonatum macropodium Turn.
priming coat paint
projected-moving pointer
protective cell
redundancy testing
rental cars
rentor
repair method
sargasso weed
settlement currency
shaking shoot
size mark
softened lead
solution heattreated condition
son of the spigot
Sophora flavescens
spudis
square cross section
sudden deaths
tent pin
thermal transport formula
tools of trade
ultimate breaking load
unicellular hair
unprecedentedly
utility index
valasek
voltage maintenance
wolfcamp age
Zohar