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第99页

信息发布者：

use it for farming and washing

be mostly made of sand

two−thirds of the

earth's surface

for humans and animals

to breathe

get in my way

very hot during the day

very cold at night

I am home to hundreds of thousands of living things.

I wear different colours in different seasons.

conditions

planets

resh

roduces

and

sounds

forests

take a walk

How long