Spiro[4.4]nonane
[化] 螺[4.4]壬烷
🗣️ 情景例句
He and Michelle
他和 Michelle
Men know where they were born, not where they shall die.
人能知其生于何地，不能知其死于何方。
He did very badly on the exam----worse than expected almost the worst in the class.
他考的不好，比期望的还糟。几乎是全班最差的。