Polynonamethylene sebacamide
[化] 聚亚壬基癸二酰胺
🗣️ 情景例句
are going to have a wonderful, romantic weekend!
将度过一个美妙浪漫的周末！
Kept waving to her mother until the train was out of sight.
不断地冲她的母亲挥手，直到火车驶出了视线。
Try and stand up.Can you stand up?
试试站起来。你能站起来吗？