Pentadiine
[化] 戊二炔
🗣️ 情景例句
Don't you think you ought to call Pete
你不觉得应该打个电话给Pete
How is the weather today?
今天天气怎么样？
I would be very grateful for information about entry to your college.
若能寄给我贵校的入学申请材料我将十分感激。