Electrocyclic reaction
[化] 电环化反应; π键环化反应
🧩 词语组成解析
🗣️ 情景例句
If the owners don't claim the dog in forty-eight hours,
如果狗的主人在四十八小时内不认领，
He's looking forward to going to America.
他盼望去美国。
I had to sit up all night writing the report.
我不得不熬通宵写报告。