Triethoxy
三乙氧基
🗣️ 情景例句
Why not?
为什么不想？
Do you know when the next exam is?
你知道下次考试在什么时候吗？
After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour.
比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。