Perfluoropropane
[机] 八氟丙烷
🗣️ 情景例句
I'm so sorry.
很对不起。
The old lady takes delight in visits from her grandchildren.
那个老妇人以孙辈门看她来为乐。
Kunta knew it was the middle of the night, for through the small open window high in the wall he could see stars.
孔塔知道已经是半夜了，因为通过墙的上方开着的小窗，他能看到星星。