Ethiomic acid
[机] 次乙二磺酸
🧩 词语组成解析
🗣️ 情景例句
All right. Is...is Susan coming?
好吧， Susan来吗？
Do you often work for Mr.stone during the holidays?
你常常在假日期间为斯通先生工作吗？
What a lot of invitations to send out!
要寄出的请贴真多呀！