Performed polymer
[化] 预聚体
🧩 词语组成解析
v. 执行, 表演（perform的过去分词形式）
🗣️ 情景例句
His popularity has soared thanks largely to his TV appearances.
由于经常出现在电视上，他的知名度日趋上升。
In universities,students train to become teachers and engineers.
在大学里，学生们被训练成为教师和工程师。
In what way?
在哪方面呢？