时间:2019-01-21 作者:英语课 分类:英语口语900句


英语课

Well,no one could survive without water.But you see pollution has been making more and more water unable for drinking.


Yeah.Water pollution has for a long time been a major concern among the environmental issues.


But what are the sources of water pollution?


They could generally be divided into two categories: direct and indirect contaminant sources.


Well,direct ones are pollution directly from factories,refineries,waste treatment plants etc.,aren't they?


Yeah.They are emitted directly into urban water supplies.


But what about the indirect ones?


Indirect sources include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rainwater.


I see.for the sake of us all,we should be an active participator in the prevention of it.


Sure.it's an issue asking for everyone's participation 1.



n.参与,参加,分享
  • Some of the magic tricks called for audience participation.有些魔术要求有观众的参与。
  • The scheme aims to encourage increased participation in sporting activities.这个方案旨在鼓励大众更多地参与体育活动。
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AAPG
acronical,acronyc(h)al
Admiralty coefficient
advisos
Amplifier.
beam pattern
becauseness
Bensbach
binary gain
bond audit
brush-off,brushoff
bysning
cacozyme
cobalt-l?llingite
comparative principle of satisfying needs
compensating
congestive heart
consumable store
coolant for wire drawing
count ... in
crura corporis cavernosi penis
cues-filtered-out perspective
Diggens
elater
emulsion breaker
exponentialsmoothing
flood plain terrace
flub it
Fol-Pack
full speed range
furloughs
gang board
get a handle on
Google Store
graphicrecording
guardianize
Hotin
infantile acute laryngitis
intermediate mesoderm
international waters
inversion complex
Iwai-gawa
jugal points
Kangaroo Pt.
lady garden
lever hangs
lip surface
location-plate
loosest nontrivial grammar
looter
lymphosarcoma of bone
madonna-whore complex
mecodium crispatum copel.
multi mode disturbance
multi-stage diffuser type centrifugal pump
mummification agent
nanoripples
new siberian islandss
number of occurrence
opposition
ore feed
orthographical
paraphrenia phantastica
parental right for school involvement
permanent geodetic beacon
petke
physical prophylaxis
plant drainage cooler
play it cozy
post-larva
purification tank for liquid waste
Quercus lobata
radurization
reinforced framing
Remote Direct Memory Access
reserve for payment
resonoscope
road-networks
sarcastick
scattering matrix theory
selectants
shock energy
shunt peaking method
signaling speed
smokeless smoking
space time yield (STY)
steppin on my dick
sub caste
synchiropus picturatus
take sb's word for it
take up stand
talk sb around
taste impression
tee equivalent pipe length
think less of
transmission path delay
transportabilities
ultraviolet cure
Válega
Véménd
wood center track gauge
Zabusky equation