Diacetylene polymer
[化] 二乙炔聚合物
🧩 词语组成解析
联乙炔, 丁二炔
🗣️ 情景例句
Three scoops?
三杓？
It's windy this afternoon.
今天下午起风。
But suppose the earth could be covered with sensors spaced one foot apart,
假设地球上可以布满传感器，每个相隔1英尺，