Cyclodiolefin
[机] 环二烯烃
🗣️ 情景例句
Richard, did you go to the aerobics class, really? Richard
你真的上了有氧运动课吗？
I ought to think about it.
我应该再三考虑。
I'd prefer to do that tomorrow. I don't feel like walking very much today.
我宁可明天游览。今天我不太想步行。