亚洲激情+欧美激情,无码任你躁久久久久久,我的极品美女老婆,性欧美牲交在线视频,亚洲av高清在线一区二区三区

電子課本網(wǎng) › 第70頁

第70頁

信息發(fā)布者：
passengers
compare
gravity
took
reminds
will move
has polluted
are travelling
People would have to wear boots that are specially designed to prevent themselves 
from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways.
People might live in houses with huge comfortable rooms.
Robots would do most of the work so that people could have more time to relax.
There would probably be no schools on Mars. Every student would have a 
computer at home connected to an interplanetary network.
上一頁 下一頁