Methylmethionine
[化] 甲基蛋氨酸
🗣️ 情景例句
Can you do me a favor?
你能帮我个忙吗？
People are always changing, aren't they?
人总是在变，不是吗？
I'll let you know as soon as I get an answer.
我一有消息就立刻通知你。