Perfluoropropane
[机] 八氟丙烷
🗣️ 情景例句
we can ship the goods one month ahead of time.
我们可以提前一个月起运。
The restaurant is downstairs.
那餐厅在楼下。
The things on show were all used a hundred years ago.
展出的都是100年前使用的东西。