Polymer catalyst
[化] 高分子催化剂
🧩 词语组成解析
🗣️ 情景例句
I don't want my tonsils out.
我不想切除扁桃腺。
What color is your book?
你的书是什么颜色？
You are better now, but you mustn't get up yet. You must stay in bed for another two days.
你现在好些了，但你还不应该起床。你必须再卧床两天。