🧩 词语组成解析
[化] 二硝基乙胺
费伯（人名）
🗣️ 情景例句
on the school board,
在联合校董会中
Friends must part.
天下无不散之筵席。
It was true that he had just bought a lamb, he explained, but his lamb was black.
不错，他的确刚买了一只羔羊，阿列科解释说，但他的羔羊是黑色的。