Secocubane
拟方烷, 三环辛烷
🗣️ 情景例句
Do I have to get it done by noon?
我必须在中午以前做完吗？
A chain is no stronger than its weakest link.
链条的坚固程度取决于它最薄弱的环节。
Is there anything I can show you.
有什么要我拿给你们看的吗？