Polymer catalyst
[化] 高分子催化剂
🧩 词语组成解析
🗣️ 情景例句
Yes, you are through with it. I hope you will enjoy your stay in China.
是的，检查完毕。希望您在中国过得愉快。
Her name has slipped from my mind.
我想不起她的名字了。
All produets have to go through five checks in the whole process.
所有产品在整个生产过程中得通过五道质量检查关。