Pectosinic acid
[化] 果胶糖酸
🧩 词语组成解析
🗣️ 情景例句
I can't wait to tell Marilyn!
我迫不及待地想告诉Marilyn。
If things were to be done twice all would be wise.
事事倘能做两次，人人都可称明智。
Yes. If we go on polluting the world, it won't be fit for us to live in.
是的。如果我们继续污染世界，地球就不适合我们居住了。