Octogen
[化] 奥克托今
🗣️ 情景例句
Does he know you're here?
他知道你在这 吗？
When the weather is hot, we turn on the air conditioner.
天热的时候就开空调。
Travelling at a height of 30,000 feet, far above the clouds, and at over 500 miles an hour is an exhilarating experience.
腾云驾雾，在30，000 英尺高空以500英里的时速旅行，这种经历令人心旷神怡。