Once we neglected the significance of the environment protec
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修改初见( )

we have been aware of (the fact ) that the ( harmonity ) of relationship between human and nature is the future of ( us) human beings.

除了in,but, except等少数几个介词可以接that从句,of ,about.不可以的,如

I heard of that he had come back.(x)

we 在of后用宾格,同位语如

The teacher is very strict with us students.