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
If you know a man's last name, address him as 'Mr.'.
如果你知道一个男性的姓， 应该用 'Mr。' 来称呼他。
What shall I send him for his the New Year?
我要送他什么东西作为新年礼物？
How do you keep in shape?
你怎么保持身材？