🧩 词语组成解析
a. 聚乙烯基的
n. 甲醛\\n[化] 甲醛
🗣️ 情景例句
I'm Richard Stewart, and this is my wife, Marilyn.
我叫Richard Stewart ，这是我妻子 Marilyn。
Soon up, soon down.
升得高，落得快。
that I was a new boy in a huge school, and I would have been very pleased to be regarded as something so interesting as a problem.
我是一所大学里的一名新生，如果我当时真的被看成像一个问题那样有趣，我会感到很得意的。