Ketotetrose
酮丁糖
🗣️ 情景例句
I think Michelle is asleep now. Let's talk.
我想Michelle现在睡着了。让我们谈谈吧。
What would you like to do this weekend?
这周末你打算做什么？
What bad weather! I don't like the snow.
天气糟透了！我不喜欢下雪天。