Polypentamethylene sebacamide
[化] 聚亚戊基癸二酰胺
🗣️ 情景例句
You know airports.
机场的事你是知道的。
In secondary school, children study mathmatic、phsicas and chemistry.
中学的小孩会读到数学、物理和化学。
He could hear their crying, also children's voices.
他可以听到妇女们的哭声，还有孩子们的声音。