Quadricyclane
四环庚烷
🗣️ 情景例句
My wife is a writer. She writes on her computer. She has published ten novels already.
我的太太是个作家。她在计算机上写作。她已发表了10部长篇小说。
They imagine, what he is doing.
她们在猜他所做的事。
Refuse politely any cold drink from an unknown source.
应谢绝任何不明来源的冷饮。