Petroleum polymer
[机] 石油聚合物
🧩 词语组成解析
🗣️ 情景例句
It's not an important game, anyway.
话说回来， 这场比赛不重要。
Would you be so kind as to lend me some money?
你能借我一点儿钱吗？
Though the doctors did his best, the patient's recovery was slow.
尽管医生竭力医治，但病人恢复缓慢。