Bbo
偏硼酸钡（晶体）；助推器烧毁（Booster Burnout）
🗣️ 情景例句
I think I did.
我想是的。
Where do you have your lunch?
你在哪儿吃午饭？
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。