Pentachloride
五氯化物
🗣️ 情景例句
But I've never had the pleasure of doing any business with you.
可是同贵公司尚无业务往来。
We used to have a lot of interesting friends.
我们过去常有很多有趣的朋友。
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。