Polynonamethylene formal
[化] 聚亚壬基缩甲醛
🧩 词语组成解析
formal
['fɔ:məl]
adj. （学校教育或培训）正规的;方式上的;礼仪上的;
n. <美>须穿礼服的社交集会;<口>夜礼服;
🗣️ 情景例句
It's bright and clear today.
今天天气晴空万里。
He that is master must serve.
主人必须会服务。
The brothers differ from each other in their interests.
这几个兄弟各有所好。