Thioaminopropionic acid
[医] 硫氢氨基丙酸, 半胱氨酸
🧩 词语组成解析
🗣️ 情景例句
And tell me where you are and what's happened.
告诉我你在哪里，发生了什么事？
A courageous foe is better than a cowardly friend.
勇敢的敌人胜过懦怯的朋友。
Suddenly someone shouted.'It's two minutes past twelve! The clock has stopped!'
“已经12点零2分了！那钟已经停了！”