my presentation 英语雾霾的课前三分钟演讲

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government
•Technology •plant more trees •punishment
··· ···

gbrluaye sky
we must protect the environment and nature
we need pure air
thanks
haze
=
SO2

N&O

PM 2.5
Influence
dail ylife
Influence
harm
What can be done?
common people
What can be done?
120 100
80 60 40 20
0Biblioteka Baidu一月
二月
三月
亚洲区 欧洲区 北美区
四月
company
What can be done?
Haze is coming
the more and more serious haze
China Meteorological has released the orange warning of haze.
Are you feeling the haze in Changsha?
element
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