Copolymer
[ [kəu'pɔlimə] ]
高中 Senior High
n. 共聚物\\n[化] 共聚物; 二元共聚物
✅ 同义词
🗣️ 情景例句
He gave them to me to hold on to them
他给我戒指， 要我自己保管，
They say we're going to get some rain later.
据说待会儿要下雨。
What is it?
什么困难。