The Polytechnic is all adults and mostly preparation for exams like the Cambridge certificates.

理工学院都是成年人，主要是为剑桥证书等考试做准备。

The Polytechnic’s are all adults and mostly preparation for exams, like the Cambridge certificates.

理工学院的都是成年人， 主要是为考试做准备， 比如剑桥证书。