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cut down trees freely
随意砍树
一把斧头
Because people cut down trees freely.
Why do people cut down trees?
house
bridge
land
Is the Earth happy?
People will get punished.
What will happen ?
Planting trees is good for us.
be good for …
对……有好处
be good for …
对……有好处
1.Planting trees is good for us.
be good at …
擅长于……
2.Yao Ming is good at playing basketball.
种树对我们有好处。
姚明擅长于打篮球。
Planting trees is good for us.
make the place beautiful
Trees can
.
Planting trees is good for us.
keep us cool
Trees can
.