Alcoxide
烃氧基金属
🗣️ 情景例句
What's the difference between A and B?
A和B有什么不同？
Would you speak a little louder?
请你说大声一点好吗？
After a wonderful meal, they told stories and sang songs by the campfire.
他们美美地吃了一顿饭后，就围在营火旁讲起了故事，唱起了歌。