Acenaphthenylidene
[化] 1,1-亚苊基
🗣️ 情景例句
Five points.
五分。
I've quit my job.
我已经辞去了我的工作。
The ideal to be aimed at was to devise an instrument that could record with a pen on paper,
当地震发生时，它能用笔在纸上记录下