Parapectic acid
[化] 果胶糖酸
🧩 词语组成解析
🗣️ 情景例句
I'm an exchange student.
我是一名交换学生。
One half of the world does not know how the other half lives.
贫富不相知。
I'd like two sweaters for my daughters.
我想给女儿买两件毛衣。