secondary

In many countries, students enter secondary school around the age of twelve.

(Chinese) 在许多国家，学生大约在12岁左右进入中学。

He teaches history at a local secondary school in the center of town.

(Chinese) 他在镇中心的一所当地中学教历史。

Cost is an important factor, but for this project, it is only a secondary concern.

(Chinese) 成本是一个重要因素，但对于这个项目来说，它只是次要考虑的事项。

The doctor noted that the fever was a secondary symptom of the main infection.

(Chinese) 医生注意到，发烧是主要感染引发的次要症状。