第79页

信息发布者：
spacemen
cheaper
1.Listen to some English tapes twice a week.
2.Read English newpapers in the morning.
3.Watch English films once a week.
4.Write things in English every day.

float in the air
low-gravity basketball games
traffic with no air pollution
online theatres
public transport system
 a popular form of entertainment
online games
visit two moons
living
electronic
Online
low-gravity
buy
easy
Transport
float
air pollution 
interesting
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