Diaminovaleric acid
[医] 2,5-二氨基戊酸, 鸟氨酸
🧩 词语组成解析
🗣️ 情景例句
Excuse me, but could I ask you a quick question?
对不起，我能问你一个简短的问题吗？
One half of the world does not know how the other half lives.
贫富不相知。
No, it isn't, said the detective suddenly.
不，不对，侦探突然说。