我们应该在扔掉废物前进行分类.
We should divide the waste into different groups before it .
Good chances always hide around us,waiting for careful people to find them.(某处)
Mr.Li is to us how to organize our ideas according to the type of writing (解释)
Some young students like books better than paper books (电子的)
We often borrow novels and from our school library (杂志)
Most drivers in Suqian are (礼貌的) enough to let people walk across the street first.