1.= Around sixty students are in our class.
= Our class has around sixty students (in it).
还可以把 around 换写成 about,或把around sixty students 换写成 sixty students or so.
2.will go to = be going to
其中的be动词要根据具体句子的主语,写成相应的 am/is/are
注:/ 表示可以任意选用其一,( )表示其内部分可以省略不写.