1
earth
2
sun
3
moon
4
star
5
sunrise
6
snow
7
water
8
hill
9
lake
10
sea
11
the Yangtze River 无拼读
12
the Yellow River 无拼读
13
stone
14
flower
15
grass
16
tree
17
forest
18
maple leaves 无拼读
19
Africa
20
Asia