Bbo
偏硼酸钡（晶体）；助推器烧毁（Booster Burnout）
🗣️ 情景例句
He always makes me laugh.
他总是让我笑。
He who would climb the ladder must begin at the bottom.
爬梯必须从底层开始。
Yes, so we had better look over your specifications.
是的，所以我们最好先把您的规格说明细看一遍。