第72页

信息发布者：
A
D
B
A
pollution
people drop litter everywhere carelessly and some factories don't pay attention to the environment
be able to live in the sea away from the crowded and polluted cities on land
robots will do most of people's work so that we will have more free time for
sports and travelling
The children didn't go to school today because of the heavy snow.
He felt ill because of eating too much ice cream.
上一页 下一页