Pentaiodoethane
[化] 五碘乙烷
🗣️ 情景例句
I did my thesis on Sino-American Business Relationship.
我做的论文题目是中美贸易关系。
She always feels comfortable when surrounded by her family.
她被家人围绕时，常感到快慰。
when the plane suddenly turned round and flew back to the airport.
这时飞机突然调转头来，飞回了机场。