Methylcystein
甲基胞嘧啶
🗣️ 情景例句
I just received your letter and I want to let you know my opinion on your plans for the future.
来信已收到，我想告诉你我对你将来打算的看法。
Do you want me to explain?
让我替你说明好吗？
What's the matter with him, doctor?
他得了什么病，医生？