Polybutyrolactam
[化] 聚丁内酰胺; 尼龙-4
🗣️ 情景例句
Could we make it tomorrow at nine?
明天9点怎么样？
Rodney began to sob with grief.
罗杜尼悲伤得开始哭了起来。
She bumped into the furniture and kept mumbling about the guests.
她撞到了家具上，嘴里还不断咕咕哝哝议论客人。