Polycaprolactam
聚已内酰胺, 尼龙-6
🗣️ 情景例句
The musicians. The dancers--in the parks and on the streets.
音乐家啦 ，在公园或街头跳舞的人啦。
So he keeps on studying after his English classes in order to prepare for life in America.
所以他在英语课下课后还继续学习，为以后在美国生活做准备。
A talk? What subject should I talk about?
吉姆，讲话？我能讲什么题目呢？