Aminothiopropionic acid
[医] 半胱氨酸
🧩 词语组成解析
🗣️ 情景例句
Excuse me, but may I ask how old you are?
对不起， 我能问一下你多大了吗？
Rain before seven: fine before eleven.
早雨不过午。
Bones were carved into needles and tools, and the teeth were used to make necklaces.
骨头则雕琢成针和工具，牙齿用来作项链。