Alcoxide
烃氧基金属
🗣️ 情景例句
with Admissions at Columbia University.
与Columbia大学的招生人员。
If I'm not mistake.
如果我没搞错的话。
No! You don't understand! Not before or after meals--instead of them.
“不是，你没听懂！不是饭前或饭后吃--而是代替三餐饭。”