Phaseic acid
[化] 菜豆酸; 红花菜豆酸
🧩 词语组成解析
🗣️ 情景例句
I have to sign copies of my book for a lot of people
我还必须为许多人在我的书上签名
That's very nice of you. I guess I could use some help.
谢谢你的好意。我想我可能要一点帮助。
What's matter?
怎么回事？